Periodic Trends - Valence Electrons

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 elements in Group 1 have?

Back

Elements in Group 1 have 1 valence electron.

Front

How many valence electrons do elements in Group 2 have?

Back

Elements in Group 2 have 2 valence electrons.

Front

How many valence electrons do elements in Group 13 have?

Back

Elements in Group 13 have 3 valence electrons.

Front

How many valence electrons do elements in Group 14 have?

Back

Elements in Group 14 have 4 valence electrons.

Front

How many valence electrons do elements in Group 15 have?

Back

Elements in Group 15 have 5 valence electrons.

Front

How many valence electrons do elements in Group 16 have?

Back

Elements in Group 16 have 6 valence electrons.

Front

How many valence electrons do elements in Group 17 have?

Back

Elements in Group 17 have 7 valence electrons.

Front

How many valence electrons do elements in Group 18 have?

Back

Elements in Group 18 have 8 valence electrons, except for Helium which has 2.

Front

What is the significance of valence electrons in chemical reactions?

Back

Valence electrons determine how an atom can bond with other atoms, influencing the formation of molecules.