Valence Electrons

Valence Electrons

Multiple Choice

How many valence electrons do atoms need, in order to meet the Octet Rule?

• 2

• 4

• 6

• 8

Multiple Choice

Why is Helium an exception to the Octet rule?

• Because helium has only one energy level that can hold 2 electrons. So, helium has a full outer energy level with just 2 electrons.

• Because helium can turn its protons into electrons, so it doesn't need to begin with 8 electrons.

Multiple Choice

How can atoms, that do not originally have 8 valence electrons, meet the Octet rule?

• By losing electrons

• By gaining electrons

• By either losing or gaining electrons

Multiple Choice

What occurs when atoms transfer electrons?

• Nuclear reactions

• Chemical reactions

• Electrical reactions

Multiple Choice

Argon is located in column 18. Which of the following would be the correct electron dot diagram for Argon?

Multiple Choice

Which of the following atoms would lose two valence electrons, in order to meet the Octet Rule?

Multiple Choice

Which of the following atoms would gain three electrons, in order to meet the Octet Rule?

Multiple Choice

1. How can you determine the maximum number of electrons that can fit in an energy level? (formula)

• n

• n²

• 2n²

• none of the above