Formulas for ionic compounds - Part 1

A negatively-charged ion.

• atom
• cation
• anion
• electron

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NGSS.HS-PS1-1

Cations are

• positive
• negative
• on the right side of the periodic table.
• nonmetals

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Na ⁺  and  S ^-2

• Na₂S
• NaS₂
• Na₂S₂
• NaS

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NGSS.MS-PS1-1

K ⁺  and  N^-3

• KN
• KN₃
• K₃N₃
• K₃N

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NGSS.MS-PS1-1

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

• AlO
• Al₂O₃
• Al₃O₆
• Al₃O₂

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NGSS.HS-PS1-2

What would be the proper chemical formula for combining Al³⁺ and l^- :

• Al l₃
• Al₃l
• Al l
• Al₃ l₃

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

What formula results when Ca⁺²  and  Br^- ions bond?

• Ca₂Br₂
• CaBr
• Ca(br)₂
• CaBr₂

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the charge on a chloride ion?

• -1
• 1
• +2
• +1

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

When an atom loses an electron, it becomes a:

• positive ion
• negative ion
• neutral ion
• neutral atom

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NGSS.HS-PS1-2

Li⁺ combines with P^3-  to form

• LiP
• Li₃P
• LiP₃
• Li₃P₃

Tags

NGSS.MS-PS1-1