Atomic Structure, Valence Electrons, Periods and Groups

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

How many valence electrons do atoms in Group 1 have?

Back

1

Front

What is the maximum number of electron shells an atom can have?

Back

The maximum number of electron shells is determined by the period number in the periodic table.

Front

How many electron shells does an atom in Period 3 have?

Back

3

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

How many protons does the element with atomic number 7 have?

Back

7

Front

What particles make up the nucleus of an atom?

Back

Protons and neutrons.

Front

What is the charge of a proton?

Back

A proton has a positive charge.

Front

What is the charge of a neutron?

Back

A neutron has no charge (neutral).

Front

How many valence electrons does carbon have?

Back

4