Atomic Structure Test

Front

What period does the element I - Iodine belong to?

Back

5

Front

What is the center of an atom called?

Back

Nucleus

Front

What is the total number of protons and neutrons in an atom called?

Back

Mass number

Front

What are the horizontal rows on the periodic table called?

Back

Period

Front

What tells us how many valence electrons an element has?

Back

Group

Front

What is the smallest unit of an element that retains its properties?

Back

Atom

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of a neutron?

Back

Neutral

Front

What is the charge of an electron?

Back

Negative

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.