Benchmark

Ionic bonds form between ---

• nonmetals.

• metals and nonmetals.

Tags

NGSS.HS-PS1-2

Covalent bonds form between ---

• nonmetals.

• metals and metals

• metals and nonmetals

What are valence electrons?

• sum of the protons and neutrons

• protons minus electrons

• electrons in the inner shells

• electrons in the outer shell

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is NOT a covalent bond?

• K₂S

• H₂O

• I₂

• CO₂

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Why do chemical bonds form?

• so the number of protons equals the number of electrons

• to fill the outermost electron level

• so an atom can become unstable

The reason that Noble Gases do not react is because

• Their outer electron shell is filled

• Their inner electron shell is filled

• They are able to bond to fill their outer shell

• None of the above, Noble Gases are highly reactive

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Name the following compound: 
N₂O₄

• dinitrogren tetraoxide
• tetranitrogen dioxide
• nitrogen oxide
• dinitrogen tetraoxygen

Name the following compound: 
CCl₄

• monocarbon quadchloride
• carbon tetrachloride
• carbon chloride
• monocarbon quadchloide

Na₂S

• Disodium sulfide

  Disodium sulfide
  

• Sodium sulfide
• Sodium monosulfide

Atoms gain lose, gain, or ______electrons to get a stable outer energy level.

• share
• split
• create
• destroy

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2