Electrons

What is a valence electron?

• Electrons in the first energy shell

• Electrons in the second energy shell

• Electrons in the outer shell

• Total number of electrons

What row is this element in?

• 1

• 2

• 3

• 4

What element is this?

• Carbon

• Boron

• Beryllium

• Lithium

What element is this?

• Sodium

• Magnesium

• Calcium

• Silicon

• Phosphorous

How many valence electrons?

• 2

• 3

• 4

• 5

How many valence electrons does this element have?

• 1

• 2

• 3

• 4

What is this element?

• Beryllium (atomic #4)

• Boron (atomic #5)

• Carbon (atomic #6)

• Nitrogen (atomic #7)

What is the atomic number of this atom?

• 2

• 4

• 6

• 8

How many valence electrons?

• 2

• 3

• 4

• 5

Name this element.

• Argon

• Chlorine

• Aluminum

• Boron