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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Periodic Table Puzzle Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

What are positively charged particles of the atom? protons
What are negatively charged particles of an atom? electrons
What particle of anatom has no charge? neutrons
Where are protons found? nucleus
Where are electrons found? electron clouds
An _______ is an atom that has the same number of protons but a different number of neutrons as other atoms of the same element. isotope
The ____ ______ is the total number of protons and neutrons. mass number
What detrmines the identity of an atom? atomic number
What is an average of the masses of all naturally occuring isotopes of an element? Atomic mass
The electrons in the outermost energy level of an atom are called _______ _________. valence electrons
Alkali Metals only have ___ valence electron? one
Valence electrons determine the _____ of which an element si placed. group
Lithium is a? alkali metal
Is Flourine a metal or nonmetal? nonmetal
A ______ loses an electron and becomes positively charged. cation
A _____ gains an electron and becomes negatively charged. anion
A row of elements is called a ______. period
What are charged particles that form during chemical changes? ions
What is it called when 2 atoms of nonmetals bond? covalent bonding
What is it called when a metal reacts with a nonmetal? ionic compounds

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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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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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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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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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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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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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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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Atoms, Elements, and Compounds Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

are the building blocks of matter Atoms
Neutrons and Protons are located here Nucleus
Positively charged particles Protons
Particles that have no charge neutrons
Negitively charged particles Electrons
pure substances that cannot be broken down into other substances by physical or chemical means Element
Atoms of the same element that have different numbers of neutrons Isotopes
A pure substance formed when two or more different elements combine Compound
chemical bond that forms when electrons are shared Covalent bond
a compound in which the atoms are held together by covalent bonds Molecule
an electrical attraction between two oppositely charged atoms or groups of atoms ionic bonds
process by which atoms or groups of atoms in substances are reorganized into different substances chemical reaction
substance that lowers the activation energy needed to start a chemical reaction catalyst
biological catalyst that speed up the rate of chemical reactions in biological processes enzymes
specific location where a substrate binds on an enzyme active site
molecules that have an unequal distribution of charges polar molecules
the electrostatic attraction hydrogen bond
the substance that is dissolved in the solvent solute
substance in whih another substance is dissolved solvent
anothe name for homogeneous mixture solution

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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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