Valence Electrons

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds with other atoms.

Front

How many valence electrons does Phosphorus have?

Back

5

Front

What does the period number of an element indicate?

Back

The period number indicates the number of electron shells in an atom.

Front

What are protons?

Back

Protons are positively charged particles found in the nucleus of an atom.

Tags

NGSS.MS-PS1-5

Front

What is a neutron?

Back

A neutron is a particle in an atom that has no charge.

Front

How many valence electrons does an element in Group 15 have?

Back

5

Front

What is the maximum number of valence electrons an atom can have?

Back

8, according to the octet rule.

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine how an atom can bond with other atoms to form molecules.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Front

Which group of the periodic table has 7 valence electrons?

Back

Group 17 (Halogens) has 7 valence electrons.

Front

What is the relationship between valence electrons and reactivity of an element?

Back

Elements with fewer or more valence electrons than a full shell tend to be more reactive.