Binary Ionic Compounds

What is the formula for magnesium phosphide?

• Mg₃P₂
• Mg₂P₃
• Mg₂PO₃
• Mg₃(PO₃)₂

Tags

NGSS.MS-PS1-1

The chemical formula for an ionic compound of potassium and oxygen is

• KO

• K₂O

• K₂O₂

• KO₂

Name this compound: 
NaBr

• Bromide sodide
• Sodium bromide
• Sodium bromate
• Sodium bromite

Tags

NGSS.MS-PS1-1

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

• Ca₂Br₂
• CaBr
• Ca(br)₂
• CaBr₂

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

• Al l₃
• Al₃l
• Al l
• Al₃ l₃

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

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

• KS
• K₈S
• K₆S₃
• K₂S

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Li⁺ combines with P^3-  to form

• LiP
• Li₃P
• LiP₃
• Li₃P₃

Tags

NGSS.MS-PS1-1

If an element has 3 valence electrons, what charge will likely form on its ion ?

• +3
• +5
• -3
• -5

Tags

NGSS.HS-PS1-1

Hector claims that a single sodium ion and a single oxygen ion do not bond together to form a stable binary ionic compound. Is he correct? Why or why not?

• Hector is incorrect. The two ions have opposite charges, so they will bond together in a binary ionic compound.

• Hector is incorrect. The two ions have more than eighteen protons, so they will bond together in a binary ionic compound.

• Hector is correct. The sum of the charges of the two ions must be zero in order for them to form a stable ionic compound.

• Hector is correct. The sum of the protons of the two ions must be divisible by eight in order for them to form a stable ionic compound.

Tags

NGSS.HS-PS1-3