Names & Formulas --- ionic bonds and charges

What is the charge for a nitrogen ion?

• +1

• +3

• -1

• -3

What is the charge for a calcium ion?

• +2

• -2

• +1

• -1

What is the charge for a beryllium ion?

• +2

• -2

• +4

• -1

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How does a lithium atom form a bond with a chlorine atom?

• the lithium gives 3 electrons to the chlorine

• the lithium gives 1 electron to the chlorine

• the chlorine gives 7 electrons to the lithium

• the chlorine gives 1 electron to the lithium

How does oxygen form bonds?

• It gives 6 electrons

• It takes 6 electrons

• It takes 2 electrons

• It gives 2 electrons

Tags

NGSS.MS-PS1-1

When aluminum forms a bond, what charge does it have?

• Positive

• Negative

What is the correct formula for magnesium fluoride?

• 
• 
• 
• 

What is the charge on potassium when it forms a bond?

• 15

• -3

• +3

• +1

What is the charge on astatine(As) when it forms a bond?

• 5

• -3

• +3

• 4

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the charge on iron when it forms a bond?

• +1

• +2

• +3

• cannot be determined without a formula