The Atom
Compounds
Quantum Numbers
Bonds
Chemical formulas and equations
200

The smallest unit of an element that can exist alone or in combination with other elements

What is an atom?

200

The smallest particle of a compound or a gaseous element that can exist and still retain the characteristic properties of that substance

What is a molecule?

200

The arrangement of electrons in orbitals

What is an electron configuration?

200

A substance formed from two or more elements chemically united in fixed proportions

What is a chemical compound?

200

A chemical formula that represents the simplest whole-number ratio of elements in a compound.

What is an empricial formula?

400

This number is the same as the number of protons in an atom of a particular element.

What is an atomic number?

400

"Atoms attempt to acquire an outer orbital with eight electrons"

What is the octet rule?

400
The name of the region around the nucleus where an electron has a high probability of being found.

What is an orbital (electron cloud)?

400

Chemical bonds that are formed when atoms share electrons

What is a covalent bond?

400

A chemical formula that specifies the actual number of each type of atom in a molecule

What is a molecular formula?

600

The sum of the numbers of protons and neutrons in the nucleus of an atom

What is the mass number?

600

The combination of nonmetals with nonmetals

What is a covalent compound?

600

According to this principle, only 2 electrons with opposite spin can occupy and orbital.

What is the Pauli Exclusion Principle?

600

Bonds formed in metals where electrons move freely.

What is a metallic bond?

600

A chemical equation in which the number of atoms of each element is the same on both sides of the equation.

What is a balanced equation?

800

The name used to describe protons and neutrons

What are nucleons?

800

The combination of nonmetals with metals.

What is an ionic compound?

800

The term is used to describe the lowest energy state an electron can occupy in an atom.

What is the ground state?

800

Covalent bonds with an unequal sharing of electrons.

What is a polar covalent bond?

800

A number placed in front of a chemical formula in a balanced equation to represent the ratio of reactants and products

What is a coefficient?

1000

A weighted average of the masses of isotopes of an element based on relative abundance.

What is an atomic weight?

1000

Compounds with the same molecular formula but with different structures

What are isomers?

1000

This principle says that we cannot know both the position and speed of a particle.

What is the Heisenberg uncertainty principle?

1000

The comparative ability of an element to attract bonding electrons.

What is electronegativity?

1000

The principle that matter is neither created nor destroyed in a chemical reaction, and the total mass of the reactants is equal to the total mass of the products

What is the law of conservation of mass?

M
e
n
u