Chapter 4 Vocabulary

Question 1

The second series of inner transition elements which goes from thorium to lawrencium.

Answer 1

actinides

Question 2

Substance that can make something happen faster but is not changed itself.

Answer 2

catalyst

Question 3

Family of elements in the periodic table that have similar physical or chemical properties.

Answer 3

group

Question 4

Elements in group 17 of the periodic table.

Answer 4

halogen

Question 5

The first series of inner transition elements which goes from cerium to lutetium.

Answer 5

lanthanide

Question 6

Element that is malleable, ductile, a good conductor of electricity, and generally has a shiny or metallic luster.

Answer 6

metal

Question 7

Element that shares some properties with both metals and nonmetals.

Answer 7

metalloid

Question 8

Elements in group 18 of the periodic table.

Answer 8

noble gases

Question 9

Element this is usually a gas or brittle solid at room temperature and is a poor conductor of heat and electricity.

Answer 9

nonmetal

Question 10

Horizontal row of elements in the periodic table whose properties change gradually and predictably.

Answer 10

period

Question 11

Elements in groups 1 and 2 and 13-18 in the periodic table that include metals, metalloids, and nonmetals.

Answer 11

representative elements

Question 12

Element that does not conduct electricity as well as a metal but conducts it better than a nonmetal.

Answer 12

semiconductor

Question 13

Are made in laboratories and nuclear reactors.

Answer 13

synthetic elements

Question 14

Elements in groups 3-12 in the periodic table, all of which are metals.

Answer 14

transition elements

Question 15

Elements in group 1 of the periodic table.

Answer 15

alkali metals

Question 16

Elements in group 2 of the periodic table.

Answer 16

alkaline earth metals