What region of the periodic table contains atoms that form covalent bonds?

• the left side

• the middle

• the right side

• only those labeled yellow

Tags

NGSS.HS-PS1-2

When two nonmetals do not share electrons evenly, the resulting covalent bond will be

• nonpolar

• polar

• ionic

• metallic

According to the octet rule most elements need _______ valence electrons.

• 2
• 8
• 6
• 18

Tags

NGSS.HS-PS1-1

Which of these would be covalently bonded?

• Na and K

• Ca and O

• F and Cl

• Ne and N

Atoms become more stable when...

• their valence electron shell is full.

• their valence electron shell is empty.

• they have a positive charge

• they feel valued by others

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Covalent compounds...

• share electrons

• transfer electrons

• either gain or lose electrons

• exist in a sea of positive ions

In a nonpolar covalent bond, electrons are shared:

• equally

• unequally

• between two metals

• between a metal and a non-metal

Covalent bonding is between a

• nonmetal and nonmetal

• metal and nonmetal

• metal and metal

• It depends on the situation

Tags

NGSS.HS-PS1-2

_________ molecules occur naturally as pairs of two identical atoms covalently bonded together.

• Diatomic

• Monatomic

• Polyatomic

• Bestie

A compound that is weak, a poor conductor, and has low melting and boiling points is most likely...

• ionic

• metallic

• covalent

Tags

NGSS.HS-PS1-3