Chapter 5

Question 1

Describes something that occurs or repeats at regular intervals

Answer 1

Periodic

Question 2

The law that states the repeating chemical and physical properties of elements change periodically with the atomic numbers of the elements

Answer 2

Periodic law

Question 3

In chemistry, a horizontal row of elements in the periodic table

Answer 3

Period

Question 4

A vertical column of elements in the periodic table; elements in a group share chemical properties

Answer 4

Group

Question 5

One of the elements of group 1 of the periodic table (lithium, sodium, potassium, rubidium, cesium, and francium)

Answer 5

Alkali metal

Question 6

One of the elements of group 2 of the periodic table (Beryllium, magnesium, calcium, strontium, barium, and radium)

Answer 6

Alkaline-earth metals

Question 7

One of the elements of group 17 of the periodic table (Fluorine, chlorine, bromine, iodine, and astatine); halogens combine with most metals to form salts

Answer 7

Halogen

Question 8

One of the elements of group 18 of the periodic table (Helium, neon, argon, krypton, xenon, and radon); noble gases are unreactive

Answer 8

Noble Gas