Valence electrons and Sublevels

• 2
• 8
• 3
• 13

• 2
• 3
• 5

Valence electrons are the...

• Innermost electrons
• Middle electrons
• Outermost electrons
• Any electrons

USE THE PERIODIC TABLE

How many valence electrons does sodium have?

• 1

• 2

• 3

• 4

USE THE PERIODIC TABLE

How many valence electrons does Phosphorus have?

• 31

• 5

• 15

• 4

Elements in the same column of the periodic table always have the same # of _______ as one another.

• Protons
• Neutrons
• Electrons
• Valence Electrons

How many valence electrons are found in atoms of group 14?

• 4
• 3
• 14
• 16

Which group has the greatest number of valence electrons?

• 1
• 14
• 18
• 16

Which elements have the most similar chemical properties?

• boron and carbon

• oxygen and sulfur

• aluminum and bromine

• argon and silicon

Valence electrons are: 

• Electrons farthest away from the nucleus
• Electrons closest to the nucleus
• Electrons that just come and go - they don't stay with the atom
• Electrons in the second shell