Chapter 5 Vocab

Question 1

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

Answer 1

Periodic Law

Question 2

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

Answer 2

Period

Question 3

A vertical column of elements in the periodic table.

Answer 3

Group

Question 4

An atom, radical, or molecule that has gained or lost one or more electrons and has a negative or positive charge.

Answer 4

Ion

Question 5

An element that is shiny and that conducts heat and electricity well.

Answer 5

Metal

Question 6

An element that conducts heat and electricity poorly and that does not form positive ions in an electrolytic solution.

Answer 6

Nonmetal

Question 7

An element or compound that conducts electric current better than an insulator does but not as well as a conductor does.

Answer 7

Semiconductor

Question 8

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

Answer 8

Alkali Metal

Question 9

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

Answer 9

Alkaline-Earth Metal

Question 10

One of the metals that can use the inner shell before using the outer shell to bond.

Answer 10

Transition Metal

Question 11

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

Answer 11

Noble Gas

Question 12

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 12

Halogen