Exam 2: T7-T12

Question 1

The distance from the nucleus of an atom to the outermost electron shell, essentially describes the “size” of the atom.

Across a Period (left to right): Decreases.

Down a Group (top to bottom): Increases.

Answer 1

Atomic radius

Question 2

Opposite charges attract and like charges repel

Answer 2

Coulombs Law

Question 2

A positively charged ion

Answer 2

Cation

Question 2

A negatively charged ion

Answer 2

Anion

Question 3

The measure of the ability of an atom in a chemical bond to attract electrons.

As you move from left to right: Increases.

As you move up a group: Increases

Answer 3

Electronegativity

Question 4

Energy is required to remove an electron from an atom in the gas phase to create a positive ion.

As you move up a group: Increases

As you move from left to right: Increase

Answer 4

Electron Affinity

Question 5

Heat is released when a gaseous atom gains an electron to create a negative ion.

Across a Period: Increases.

As you move from left to right: Increases

Answer 5

Ionization Energy

Question 6

Species that have the same electron configuration

Answer 6

Isoelectronic

Question 7

Outer electrons

Answer 7

Valence electrons

Question 8

Inner shell electrons

Answer 8

core electrons