bonding

How many electrons are needed in the outer energy levels of most atoms to be stable?

• 2
• 4
• 6
• 8

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

A cation is a ____ ion.

• negative
• positive
• neutral
• ficticious

Tags

NGSS.HS-PS1-2

A anion will be a ____ ion.

• negative
• positive
• neutral
• ficticious

Tags

NGSS.HS-PS1-1

Beryllium will ____ valence electrons when forming an ionic bond.

• lose 4
• gain 4
• lose 2
• gain 2

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which group of elements are most likely to need a Roman numeral in an ionic compound name?

• alkaline earth metals
• transition metals
• halogens
• noble gases

Which of the following contains a polyatomic ion?

• Cu₂CO₃
• MnO
• CrN
• BeCl₂

Which of the following is the correct formula for Cesium sulfate?

• CsS₂
• Cs(SO₄)₂
• Cs₂SO4
• Cs₂S

How do the following two elements bond together?
K¹⁺  S^2- 

• KS
• K₈S
• K₆S₃
• K₂S

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How do the following two elements bond together?
Pb⁴⁺  O^2-       

• PbO
• Pb₂O₃
• PbO₂

• Pb₃O₂

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

NGSS.HS-PS1-4

What type of elements make up covalent bonds?

• Nonmetal only
• Metal and Nonmetal
• Metal Only
• Metalloids and Nonmetals.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2