4. Valence Electrons Review

What is the maximum number of electron shells an atom can have?

• 5 shells

• 7 shells

• 10 shells

• 3 shells

Which element is used as an example to explain valence electrons in the first shell?

• Helium

• Sodium

• Beryllium

• Chlorine

According to the octet rule, how many electrons do most elements desire in their valence shell for stability?

• 8 electrons

• 10 electrons

• 6 electrons

• 2 electrons

What charge does sodium acquire after losing one electron?

• 0

• -1

• +2

• +1

Which group of elements does not typically bond with others because they already have a full valence shell?

• Alkali metals

• Transition metals

• Noble gases

• Halogens