Final

Question 1

Valence electrons

Answer 1

An electron in the highest occupied energy level of an atom

Question 2

Electron dot structure

Answer 2

A notation that depicts valence electrons as dots around the atomic symbol of the element; the symbol represents the inner electrons and atomic nucleus; also called Lewis dot structure

Question 3

Cations

Answer 3

Any atom or group of atoms with a positive charge

Question 4

Anions

Answer 4

Any atom or group of atoms with a negative charge

Question 5

Molar mass

Answer 5

A term used to refer to the mass of a mile of any substance

Question 6

Molarity (M)

Answer 6

The concentration of absolute in a solution expressed as the number of miles of solute dissolved in 1 liter of solution

Question 7

Octet rule

Answer 7

Atoms react by gaining or losing electrons so as to acquire the stable electron structure of a noble gas, usually 8 valence electrons

Question 8

Alloys

Answer 8

A mixture composed of two or more different molecular forms of an element in the same physical state; oxygen and ozone are allotropes of the element oxygen