Periodic Table/Atoms 2024 test #4-review

Front

What is the atomic number of Chlorine (Cl)?

Back

17

Front

How many neutrons does Chlorine (Cl) have if its atomic mass is 35?

Back

18

Front

What is a period in the periodic table?

Back

A horizontal row of elements in the periodic table.

Front

What are valence electrons?

Back

Electrons in the outermost shell of an atom that determine its chemical properties.

Front

How many valence electrons does Sodium (Na) have?

Back

1

Front

What type of charge do electrons have?

Back

Negative

Front

What subatomic particle orbits the nucleus of an atom?

Back

Electrons only.

Front

What is the atomic mass of an element?

Back

The weighted average mass of an element's isotopes.

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of a neutron?

Back

Neutral