Type
Crossword
Description

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

Atomic Structure Crossword Puzzle

Type
Crossword
Description

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

Periodic Table And Atoms Crossword

Type
Crossword
Description

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

Atomic Structure and the Periodic Table Crossword

Type
Crossword
Description

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

Intro to Chemistry Crossword

Type
Crossword
Description

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

Unit 3 Crossword Puzzle

Type
Crossword
Description

Negative charge of an atom electron
Center part of an atom that holds protons and neutrons nucleus
Positive charge of an atom Proton
Neutral Charge of an atom Neutron
Area in an atom where an electron is found Electron Cloud
Substance that cannot be broken down into smaller parts Element
Number or protons in an atom Atomic number
Atoms of the same element that have different amounts of neutrons Isotopes
Average mass of an element's isotopes Average Atomic Mass
Chart that shows the elements Periodic Table
When 2 or more elements combine Compound
Atom that is no longer neutral because of gained/lost electrons Ion
Chemical bond by sharing of valence electrons Covalent Bond
Chemical Reaction that releases energy exothermic
Chemical reaction that absorbs energy endothermic
Substance that speeds up a chemical reaction catalyst
Symbol for Iron FE
Vertical columns on the Periodic Table are called families
Horizontal rows on the Periodic Table are called periods

Atoms Vocab Crossword

Type
Crossword
Description

THE NEGATIVELY CHARGED PARTICLE IN THE ELECTRON CLOUD ELECTRON
A PARTICLE IN THE NUCLEUS WITH A POSITIVE CHARGE PROTON
A PARTICLE IN THE NUCLEUS WITH A NEUTRAL CHARGE NEUTRON
THE TINY, DENSE, POSITIVELY CHARGED REGION IN THE CENTER OF THE ATOM NUCLEUS
PARTICLES, LIKE PROTONS, NEUTRONS, AND ELECTRONS, THAT ARE SMALLER THAN THE ATOM SUBATOMICPARTICLE
REGIONS INSIDE THE ATOM WHERE ELECTRONS ARE LIKELY TO BE FOUND ELECTRONCLOUD
THE NUMBER OF THE PROTONS IN THE ELEMENT ATOMICNUMBER
THE AVERAGE OF THE MASSES OF THE NATURALLY OCCURRING ISOTOPES IN AN ELEMENT ATOMICMASS
THE ARRANGEMENT OF ELEMENTS ON A TABLE BASED ON THEIR ATOMIC NUMBER PERIODICTABLE
A COLUMN ON THE PERIODIC TABLE, ALSO CALLED A FAMILY, CONTAINING ELEMENTS WITH THE SAME NUMBER OF VALENCE ELECTRONS CHEMICALGROUP
A HORIZONTAL ROW ON THE PERIODIC TABLE PERIODS
ONE OF A HUNDRED OR SO PURE SUBSTANCES THAT CANNOT BE BROKEN DOWN INTO SIMPLER SUBSTANCES ELEMENT
AN ABBREVIATED, ONE OR TWO LETTER SYMBOL, USED TO WRITE AN ELEMENTS NAME, BEGINNING WITH A CAPITAL LETTER CHEMICALSYMBOL
THE GREEK SCIENTIST WHO NAMED THE ATOM "ATOMAS" MEANING INDIVISIBLE DEMOCRITUS
THE SCIENTIST WHO THEORIZED THAT ELECTRONS ORBIT THE NUCLEUS OF THE ATOM LIKE PLANETS NEILSBOHR
THE SCIENTIST WHO WORKED WITH THOMSON AND ADDED THE NUCLEUS TO THE MODERN MODEL OF THE ATOM ERNESTRUTHERFORD
THE SCIENTIST WHO STARTED THE MODERN ATOMIC THEORY & CONFIRMED DEMOCRITUS' MODEL OF THE INDIVISIBLE ATOM JOHNDALTON
THE SCIENTIST WHO DISCOVERED ELECTRONS, USING CATHODE RAY TUBE EXPERIMENT JJTHOMSON

Periodic Table Puzzle Crossword

Type
Crossword
Description

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

Basic Chemistry Crossword

Type
Crossword
Description

The study of matter chemistry
Occupies space and has mass Matter
Solid, liquid, gas State of matter
Pure substances consisting of only one kind of atom in each molecule. Element
Pure substances consisting of two or more atoms in each molecule Compound
Chart of elements organized according to their atomic structure Periodic table
The part of the atom containing the protons and neutrons Nucleus
Positive particle of an atom. The number of these determines what kind of element it is Proton
Neutrally charged particle found in the nucleus and has mass Neutron
Negatively charged particle outside the nucleus Electron
Donated electrons form charged particles called ions to stick together Ionic bond
Shared electrons hold atoms together. Covalent bond
A distinct group of atoms bonded together Molecule
The smallest unit of an element Atom
Shows how atoms in a molecule are located and connected Structural formula
Show the number and type of atoms in a molecule Chemical formula
The ability to do work Energy
A protein molecule or organic molecule used as a catalyst Enzyme
Substances that affect the rate of a reaction but are not changed themselves. Also may start or stop a reaction from occurring. Catalyst
The metric unit used to weigh of a bar of gold kilogram
Substances that enable enzymes to work properly. Coenzyme
Small amount of liquid chemicals would be measured using this metric unit. Milliliter

atoms Crossword

Type
Crossword
Description

the smallest component of an element atom
Dense, positively charged mass at the center of an atom. nucleus
Positively charged subatomic particle found in the nucleus. proton
Neutral subatomic particle found in the nucleus. neutron
Negatively charged subatomic particle found outside the nucleus. electron
The sum of the protons and neutrons in the nucleus of an atom. mass number
This number identifies the element and is equal to the number of protons found in the nucleus. atomic number
An atom with a charge (unequal number of protons and electrons) ion
Versions of the same element with different numbers of neutrons. isotopes
The possible energies that an electron in an atom can have. energy levels
The weighted average mass of all of an element's isotopes' mass numbers (usually a decimal). atomic weight
A visual model showing the most likely locations for the electrons in an atom. electron cloud
The arrangement of electrons around the nucleus of an atom. electron configuration
When all of the electrons in an atom have their lowest possible energies. ground state
the property of a body that causes it to have weight mass
the property of something that is great in magnitude volume
a stable particle with positive charge proton
an elementary particle with negative charge electron
of or relating to constituents of the atom or forces within the atom subatomic
(nontechnical usage) a tiny piece of anything particle

Periodic Table Crossword Puzzle

Type
Crossword
Description

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