Glossary Terms

Question 1

Metal

Answer 1

In the periodic table of elements, one of the three broad categories that classify elements. Metals are good conductors of electricity and have a metallic sheen. They can be molded or stretched without breaking.

Question 2

Metalloid

Answer 2

In the periodic table of elements, one of the three broad categories that classify elements. metalloids sometimes have the metallic gleam of metals, but are more fragile. They can conduct electricity, but not as well as metals.

Question 3

Mixture

Answer 3

Two or more elements that are combined physically rather than chemically.

Question 4

Mole

Answer 4

A group of atoms or molecules that total 6.02 x 10’23rd’ the mole is a convenient conversion unit for chemistry calculations.

Question 5

Nonmetal

Answer 5

In the periodic table of elements, one of the three broad categories that classify elements. Nonmetals, in their solid form, do not gleam, are poor conductors, and tend to be fragile.

Question 6

Period

Answer 6

The name for a row in the periodic table.

Question 7

Quark

Answer 7

A sub-atomic particle that makes up protons and neutrons. Quarks are divided into “up” quarks, which have a charge positive 2/3, and “down” quarks, which have a charge of negative 1/3.

Question 8

Subscript

Answer 8

A character written below the line of text. In chemistry this is a numeral of smaller type size and indicates the number of atoms of a particular element in a compound or molecule.

Question 9

Chemistry

Answer 9

The science of the materials that make up the universe - what they are made of, how they interact, and how they change.

Question 10

Lepton

Answer 10

Family of particles (as electrons, muons and neutrinos) that experience no strong forces

Question 10

Group

Answer 10

The name for a column in the periodic table of elements.