VALENCE

WHAT ARE VALENCE ELECTRONS?

• Electrons found in the nucleus

• Electrons found in the innermost shell

• Electrons found in the outermost energy level

• Electrons that are permanently lost

HOW MANY VALENCE ELECTRONS DOES OXYGEN HAS?

Which element has a stable electron configuration due to a full outer shell?

• Na

• Ne

• F

• Al

Why are valence electrons important in chemical bonding?

• They determine the number of protons

• They are shared or transferred to form compounds

• They are always neutral

• They prevent atoms from reacting

How many valence electrons does chlorine (Cl) have if its atomic number is 17?

• 1

• 5

• 7

• 8

The group number of an element in the periodic table often represents its number of __________ electrons.

Valence electrons are the electrons found in the outermost energy level of an atom.

• TRUE

• FALSE

An element’s chemical reactivity depends largely on the number of its valence electrons.

• TRUE

• FALSE

All atoms naturally have eight valence electrons.

• TRUE

• FALSE

Noble gases are stable because they already have a full set of valence electrons.

• TRUE

• FALSE