Type
Crossword
Description

This crossword contains the following questions and answers:

A particle with a single negative charge Electron
The positively charged central part of an atom Nucleus
A positively charged particles that make up a nucleus Protons
A nuetral particle in the nucleus of an atom Neutron
The electrons in the outermost energy level of Niels Bohr's model of an atom Valance Electrons
An area around an atomic nucleus where an electron is most likely to be found Electron Cloud
Pure substances that cannot be broken down into any simpler substances Elements
The number of protons in an atom of an element Atomic Number
Atoms of the same element that have different numbers of neutrons Isotopes
The sum of the number of protons and neutrons in an atom Mass Number
The average mass of an element's isotopes Average Atomic Mass
A chart of elements arranged into rows and columns based on their chemical and physical properties Periodic Table
Vertical columns on the periodic table Groups
Horizontal rows on a Periodic Table Periods
A group located on the left side of the Periodic Table that is a good conductor and shine when polished Metals
Another group located on the right side of the Periodic Table that are insulators and are not shiny Nonmetals
An object that has low electrical resistance and can allow electricity to flow easily Conductors
An object that has higher electrical resistance and prevents electricity easily through a material Insulator
Elements in the middle of the Periodic Table and are semiconductors.They also have properties that are similar to both metals and nonmetals Metalloids
A substance that is made of two or more elements chemically joined in a specific combination Compound
An atom no longer neutrally charged because it has lost electrons Ion
An attraction that holds ions close together Ionic Bond
A bond formed when two atoms share valence electrons Covalent Bond
A chemical reaction that releases heat of light energy Exothermic Reaction
Chemical Reactions that absorb energy Endothermic Reaction
The speed at which a reaction occurs Rate Of Reaction
A substance that speeds up chemical reactions Catalyst

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8th Grade Science Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

Number of protons in the nucleus of an atom atomic number
A stable subatomic particle electron
A cloudlike group of electrons electroncloud
A substance consisting of atoms which all have the same number of protons element
The time required for a quantity to reduce to half its initial value halflife
Any one of various forms in which the atoms of a chemical element can occur isotope
The total number of protons and neutrons in a nucleus massnumber
A subatomic particle of about the same mass as a proton but without an electric charge neutron
A very small particle of matter that is part of the nucleus of an atom and that has a positive electrical charge Proton
A solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity metal
An element or substance that is not a metal nonmetal
A nonmetal that can combine with a metal to form an alloy metalloid
The smallest particle of a substance that can exist by itself or be combined with other atoms to form a molecule atom

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Elements and the periodic table Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

A particle with a positive charge proton
A particle with no charge neutron
A particle with a negtive charge electron
Atoms with the same number of protons, but different number of neutrons Isotopes
The number of protons in the nucleus atomic number
The number of protons and neutrons in an atom atomic mass
A material that has shininess, conductivity, magnetism, malleability, and ductility Metal
Ability to transfer heat or electricity conductivity
Ability to be pulled into wires ductility
Ability to be hammered into shapes malleability
An element that lacks the characteristics of a metal non metal
An element intermediate in properties of a metal and non metal metalloid
the first element on the periodic table hydrogen
Not discovered in nature, but artificially produced isotopes synthetic elements
What hydrogen and helium would make, if combined Lithium
The 14th element on the periodic table silicon
Electrons in the outermost shell of an atom that are used for chemical bonds valence electrons
Made up of atoms, and defined nthe number of protons in the nucleus elements
the 8th element on the periodic table oxygen
What lithium and helium make when combined boron

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Atomic Structure Crossword Puzzle

Type
Crossword
Description

This crossword contains the following questions and answers:

The smallest unit of an element that maintains the properties of that element. Atom
A subatomic particle that has no change and that is found in the nucleus of an atom. neutron
A region around the nucleus of an atom whose electrons are likely to be found. electron cloud
A unit of mass that describes the mass of an atom or molecule. atomic mass unit
An atom's central region, which is made up of protons and neutrons. nucleus
An atom that has the same number of protons/atomic number as other atoms of the same element do but that has a different number of neutrons/atomic mass. isotope
The mass of an atomn expressed in atomic mass units. atomic mass
A subatomic particle that has a positive charge and that is found in the nucleus of an atom. proton
A subatomic particle that has a negative charge. electron
The sum of the number of protons and neutrons in the nucleus of an atom. mass number
The number of protons in the nucleus of an atom; the atom's number is the same for all atoms of an element. atomic number
Plays in radioactive atoms that changes a neutron to a proton or electron. weak force
A type of physical that occurs between electrically charged particles. electromagnetic force
The force that holds particles together in the atomic nucleus. strong force
A force that attracts any objects with mass. gravitational force

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Atoms and elements Cross word

Type
Crossword
Description

This crossword contains the following questions and answers:

The negatively charged particle in the electron cloud. Electron
A particle in the nucleus that is positively charged Proton
A particle in the nucleus with a neutral, or no charge Neutron
A tiny, dense positively charged region in the center of an Atom Nucleus
Particles, like protons, neutrons, and electrons that are smaller than atoms Subatomic particles
Regions inside the Atom where electrons are likely to be found. This model developed by Schrodinger, is called Quantum Theory Electron Cloud
The number of protons in an element Atomic Number
The average of the masses the neutrally occurring isotopes in element Atomic mass
The arrangement of elements on a table based on their atomic number Periodic table
A column on the periodic table, also called a family containing elements with the same number of Valence electrons Chemical group
one of a hundred or so pure substances that cannot be broken down into simpler substances Element

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Periodic Table Crossword Puzzle

Type
Crossword
Description

This crossword contains the following questions and answers:

the smallest particle of an element atom
the center of an atom nucleus
a positively changed particle in the nucleus of an atom proton
a neutral particle in the nucleus of an atom neutron
a negatively changed particle electron
an electron in the outermost energy level of an atom valance electron
the properties of elements tent to repeat in a regular an pattern periodic law
a horizontal row of elements period
another word for family group
a quantity equal to one 1/12 the mass of a carbon atomic mass unit
the number of protons in the nucleus of an atom atomic mass
the element that are usually poor conductors non-metal
the element that are good conductors of heat and electricity metal
an element that has properties of both a metal and non-metal metaloid
any atom that have the same number of protons but a different number of neutrons isotopes
another word for atomic mass unit amu

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Intro to Chemistry Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

Creator of the Periodic Table Dmitrimendeleev
When two or more compounds are joined together. mixture
Diagram of Elements Periodictable
Rows on the Periodic Table period
Number of Protons in an Element Atomicnumber
Chemistry that relates to non carbon compounds. inorganicchemistry
A substance with just one type of atom. element
The place where Protons and Neutrons are housed nucleus
Group 18. These elements do not mix well with others. nobelgases
How quick it is to join up with other elements. reactive
A type of mixture that you cannot pick apart. A solution. Homogeneous
A type of mixture that you can pick apart. Heterogeneous
A negatively charged particle. electron
Element with 2 protons. helium
positively charged particle. proton.
A type of chemistry that involves carbon based life forms. Organicchemistry
A particle that has no charge. Neutron
When two elements bond together. Compound
Electrons are located around the nucleus in an electron what? cloud
The point at which a solid turns to a liquid. meltingpoint
Point at which a liquid is turned into a gas. boilingpoint
Same number of protons different number of neutrons. isotope
Al things that have mass and volume. matter
The lightest element known hydrogen

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Atomic Structure and the Periodic Table Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

The "outer energy shell" of and atom valence
Electrons are "shared" in this type of bond. covalent
Electrons are "stolen" in this type of bond. Ionic
The smallest unit of matter with all the properties of that substance. atom
This matches the number of protons in an atom. atomicnumber
A neutron has a ___________________ charge. neutral
"Like" electric charges ____________________ each other. repel
A combination of one or more atoms. molecule
The location around the nucleus where electrons orbit. electroncloud
A charged particle. ion
A "Family" of elements that do not typically react with other elements. Noblegases
The "Family" of elements that are very reactive. halogens
Characteristics that are measurable or observable are called physical _____________. properties
Subtract the atomic number from the atomic mass to find the number of _________________. neutrons
Electrons have a ______________________ charge. negative
Protons have a _________________________ charge. positive
An abreviated way to name an element. Chemicalsymbol
Other than hydrogen and helium, the number of electrons needed to fill the valence shell. eight
The center of an atom where the protons and neutrons are located. nucleus
An element that can have a variable number of neutrons in its nucleus. isotope
Atoms with full outer energy shells are known to be _______________. stable
A group of elements with similar properties are known as a _________________. family
Reactivity is a ______________________ property. chemical
The elements are organized into this grid. periodictable
When elements react they form new _____________________. substances
This element is found in all organic matter and has four valence electrons. carbon
NaCl is the ___________________________ for salt. chemicalformula
Each ___________________ on the periodic table represents the number of valence electrons in an element. column
Each __________ on the Periodic Table represents the number of "energy levels" an element has. row
The "electronic connections" between elements in a molecule. bonds

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Periodic Table Vocabulary Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

a substance that cannot be broken down into a simpler substance by ordinary chemical means element
the smallest unit of an element that has all of the properties of the element; basic building block of matter. atom
the number of protons and neutrons in the nucleus of one atom of the element. atomic mass
the number of protons contained in each nucleus of its atoms of the element. atomic number
a horizontal row (left to right) in the periodic table. period
a vertical column (up and down) on the periodic table. group
a chart that organizes information about all of the known elements according to their atomic number. periodic table
describes how likely an element is to form bonds with other elements. reactivity
an element or substance that conducts heat and electricity, is malleable and ductile and has low ionization energy and low electronegativity values. Metals metal
an element that does not conduct electricity or heat and is usually a gas at room temperature. Nonmetals are brittle, have high ionization energies and high electronegativity values. Nonmetals tend to gain electrons to form anions nonmetal
group 1 metals on the periodic table that contain 1 valence electron and lose their valence electrons the most easily, making them the most reactive metals. alkali metals
group 1 metals on the periodic table that contain 2 valence electrons and are the second most reactive metals. alkaline earth metals
group 3-­12 on the periodic table. They have varying valence electrons and do not follow the normal trends of the other metals. They form brightly colored compounds and ions in solution. transition metals
group 17 nonmetals on the periodic table that contain 7 valence electrons. They only need to gain 1 valence electron to have a stable octet. They gain valence electrons the most readily, making them the most reactive nonmetals. halogens
group 18 elements on the periodic table that contain 8 valence electrons (He has 2) and a full valence shell making them very stable and inert. noble gases
an element that has some properties of a metal and some properties of a nonmetal. The metalloids are found on the boron staircase, there are 7 metalloids: B, Si, Ge, As, Sb, Te, and Po. metalloid
elements and/or compounds that when put together are unable to react chemically. The noble gases (group 18) elements are inert because of a full valence shell. inert
the charge of an atoms nucleus resulting from its number of protons nuclear charge
the distance between the nucleus of an atom and it's outermost energy level atomic raduis
the attraction a nucleus has resulting from its number of protons electronegativity

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Chemistry Review Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

A change in matter that produces new substances with new properties. (2words) chemicalreaction
New substances produced in a chemical reaction. products
Substances that react together in a chemical reaction. reactants
A system for organizing elements into columns and rows based on their properties. (2words) periodictable
Rows in the periodic table. period
Columns in the periodic table. family
A group of letters and subscript numbers that represent the make-up of a chemical compound. (2words) chemicalformula
An atom that has an electrical charge, either positive or negative. ion
A compound that forms between a metal and a non-metal after electrons are transferred. ionic
A compound that forms between non-metals as they share electrons. molecular
A subatomic particle found in the nucleus of an atom. It has no charge. neutron
A positively charged subatomic particle found in the nucleus of the atom. proton
A negatively charged subatomic particle that orbits the nucleus of an atom. electron
Refers to either the outer orbital of an atom or the electrons found in the outer shell. valence
A reaction in which two or more reactants combine to produce a new product. synthesis
A reaction in which one compound breaks down into two or more simpler compounds. decomposition
A reaction in which one element takes the place of another element in a compound. (2words) singledisplacement
A reaction in which the metal ions of two different compounds exchange places. (2words) doubledisplacement
The smallest unit of an element. atom
A compound that tastes sour, corrodes metal and tissue, and turns blue litmus paper red. acid
A substance that changes colour when added to an acid or a base. indicator
A compound that tastes bitter, feels slippery, corrodes tissue, and turns red litmus paper blue. base
The number in front of a product or reactant in a balanced chemical equation. coefficient
Ability to conduct (transfer) electricity. conductivity
Law describing the fact that the total mass and number of atoms is the same before and after a reaction. (3words) conservationofmass
A reaction between an acid and a base that produces salt and water. neutralization
Elements on the left side of the periodic table. They are malleable, shiny, conductive, and solid at room temperature. metals
Elements on the right side of the periodic table. They are not malleable, not conductive, and exist in a number of states at room temperature. nonmetals
A pure substance that cannot be broken down. element
A pure substance that contains two or more different elements. compound

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atoms and molecules Word Search

Type
Word Search
Description

This word search contains the following answers:

oxygen atom
water molecule
sodium chloride
electrical charge
neon
quark
isotope
energy level
matter
chemical bond
ionic bond
covalent bond
nuclear force
electromagnetic force
hydrogen
bohr model
atomic theory
elements
periodic table
carbon
nobel gases
ion
electron cloud
orbitals
atomic mass
subatomic particle
nucleus
neutron
electron
proton

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