Bonding Quick Check

When atom(s) of elements share electrons to fulfill the octet rule

• ionic bond

• noble gas

• covalent bond

• monoatomic atoms

An ionic bond involves

• metals gaining electrons

• nonmetals losing electrons

• sharing of electrons between metals

• none of these are an ionic bond

Helium only has 2 valence electrons. That is because Helium is a(n) ___________________.

• ionic element

• noble gas

• covalent element

• none of these are correct

Nitrogen #7

• has 2 valence electrons

• is a nonmetal

• when ionized has a 3+ charge

• can form covalent bonds

Calcium #20

• has 2 valence electrons

• is a nonmetal

• usually forms covalent bonds

• when ionized will for a 2+ ion

Argon #18

• usually forms covalent bonds

• is a nonmetal

• does not usually form ionic bonds

• has three electron energy levels

What is true about this molecule?

• Each bromine shares 2 electrons

• Each bromine shares 1 electron

• The bond between the bromines is covalent

• The bond between the bromines is ionic

What is true about this compound?

• Magnesium gained 2 electrons to form this compound

• Magnesium lost 2 electrons to form this compound

• The bond between magnesium and oxygen is ionic

• The bond between magnesium and oxygen is covalent.