Chapter 5 Vocab

Question 1

Describes something that occurs or repeats at regular intervals.

Answer 1

Periodic

Question 2

The law that states that 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 metal

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 Gases