Chapter 11 Vocabulary

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 numbers of the elements.

Question 3

Period

Answer 3

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

Question 4

Group/Family

Answer 4

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

Question 5

Metals

Answer 5

Elements found to the left of the zigzag line on the periodic table.

Question 6

Nonmetals

Answer 6

Elements found to the right of the zigzag line on the periodic table.

Question 7

Metalloids/Semiconductors

Answer 7

Elements that border the zigzag line on the periodic table.

Question 8

Alkali Metal

Answer 8

One of the elements of Group 1 of the periodic table (Lithium, sodium, potassium, rubidium, cesium, and francium).

Question 9

Alkaline-Earth Metal

Answer 9

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

Question 10

Transition Metal

Answer 10

One of the elements of Groups 3-12 of the periodic table.

Question 11

Lanthanides

Answer 11

Elements in the first bottom row of the periodic table that follow lanthanum

Question 12

Actinides

Answer 12

Elements in the second bottom row of the periodic table that follow actinium

Question 13

Halogen

Answer 13

One of the elements of Group 17 of the periodic table (fluorine, chlorine, bromine, iodine, and astatine); _____ combine with most metals to form salts.

Question 14

Noble Gas

Answer 14

One of the elements of Group 18 of the periodic table (helium, neon, argon, krypton, xenon, and radon); _____ are unreactive.