Unit Three Test Review

Front

What is the name of group number 2 in the periodic table?

Back

Alkali Earth

Front

How many rows (periods) are there in the periodic table?

Back

7

Front

Who stated that everything is composed of atoms?

Back

Democritus

Front

What group number are the noble gases?

Back

18

Front

What is the minimum requirement for a chemical symbol?

Back

1 capital letter

Front

What are the elements in group 1 of the periodic table called?

Back

Alkali Metals

Front

What is the name of group number 17 in the periodic table?

Back

Halogens

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the difference between metals and nonmetals?

Back

Metals are typically shiny, conductive, and malleable, while nonmetals are dull, insulative, and brittle.

Front

What is a compound?

Back

A substance formed when two or more elements chemically bond together.