5-1 & 5-2

Question 1

periodic

Answer 1

Describes something that occurs or repeats at regular intervals

Question 2

Periodic Law

Answer 2

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

Question 3

Period

Answer 3

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

Question 4

Group

Answer 4

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

Question 5

Alkali Metal

Answer 5

One of the elements of Group 2 of the periodic table (lithium, sodium, potassium, rubidium, cesium, and francium)

Question 6

Alkaline-Earth Metal

Answer 6

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

Question 7

Halogen

Answer 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.