Chapter 5

Question 1

The physical and chemical properties of the elements are periodic functions of their atomic numbers.

Answer 1

Periodic Law

Question 2

An arrangement of the elements in order of their atomic numbers so that elements with similar properties fall in the same group.

Answer 2

Periodic Table

Question 3

The 14 elements with atomic numbers 58-71 (Ce-Lu)

Answer 3

Lanthanides

Question 4

The 14 elements with atomic numbers 90-103 (Th-Lr)

Answer 4

Actinides

Question 5

The elements of Group 1 of the periodic table

Answer 5

Alkali Metals

Question 6

The elements of Group 2 of the periodic table

Answer 6

Alkaline-earth Metals

Question 7

The d-block elements; metals with typical metallic properties

Answer 7

Transition Elements

Question 8

The p-block and s-block elements

Answer 8

Main-group Elements

Question 9

The elements of Group 17

Answer 9

Halogens

Question 10

1/2 the distance between the nuclei of identical atoms that are bonded together

Answer 10

Atomic Radius

Question 11

A atom/group of bonded atoms with a positive/negative charge

Answer 11

Ion

Question 12

A process that results in the formation of an ion

Answer 12

Ionization

Question 13

The energy required to remove one electron from a neutral atom of an element

Answer 13

Ionization Energy (IE)

Question 14

The energy change that occurs when an electron is acquired by a neutral atom

Answer 14

Electron Affinity

Question 15

A positive ion

Answer 15

Cation

Question 16

A negative ion

Answer 16

Anion

Question 17

The electrons available to be lost, gained, or shared in the formation of chemical compounds

Answer 17

Valence Electrons

Question 18

A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound

Answer 18

Electronegativity