Ionic Compounds

What is the formula for aluminum fluoride?

• AlF
• Al₂F₃
• AlF₃
• Al₃F₂

How many valence electrons does a bromine atom have?

• 1
• 2
• 6
• 7

Tags

NGSS.MS-PS1-1

How do the following two elements bond together?
Al³⁺  O^2-         

• AlO
• Al₂O₃
• Al₃O₆
• Al₃O₂

Tags

NGSS.MS-PS1-1

If my charge becomes 2+, what does that say about me?

• I am stealing 2 electrons

• I am losing 2 electrons

• I am in period 2

• I have an atomic # of 2

If I gain electrons, I become

• Positive, because I've added to my atom

• Negative, because I've added electrons

• Nothing, because I'm balanced

• Equal, because now I have electrons

Metals tend to 

• gain electrons
• lose electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the correct formula for the compound, lithium oxide?

• LiO
• Li₂O
• LiO₂
• Li₂O₂

Tags

NGSS.MS-PS1-1

How do the following two elements bond together?
Cr³⁺  O^2-         

• CrO
• Cr₃O₂
• Cr₂O₃
• CrO₃

Tags

NGSS.MS-PS1-1

When a nonmetal gains electrons, it becomes this type of ion.

• Anion
• Cation

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When a metal loses electrons, it becomes this type of ion.

• anion
• cation

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2