QUIZ: Ionic & Covalent Bonds

Ionic bonds form between 2 ions that have

• negative charges

• opposite charges

• positive charges

Tags

NGSS.HS-PS2-4

When a neutral atom gains an electron, what happens to its overall charge?

• it becomes positive

• it remains neutral

• it becomes negative

How many valence electrons does bromine have?

• 35

• 17

• 7

Tags

NGSS.HS-PS1-1

How many valence electrons does carbon have?

• 6

• 14

• 4

Tags

NGSS.HS-PS1-1

Which elements usually lose their valence electrons when they bond?

• metals

• nonmetals

• noble gases

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is an example of a covalent bond?

• H₂O

• NaCl

• MgO

An ionic bond forms between a _____________ and a ___________.

• metal, metal

• metal, nonmetal

• nonmetal, nonmetal

Covalent bonds form when 2 atoms _________ electrons.

• transfer

• share

• keep

Tags

NGSS.HS-PS1-1

Which is the correct formula for magnesium sulfide?

• MgS₂

• Mg₂S

• MgS

Tags

NGSS.MS-PS1-1

A nitrogen molecule (N₂) has one triple bond. How many electrons do the nitrogen atoms share?

• 1

• 3

• 6