Binary Ionic Compounds

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

• Ca₂Br₂
• CaBr
• Ca(br)₂
• CaBr₂

What would be the proper chemical formula for combining Aluminum and Iodine

• Al l₃
• Al₃l
• Al l
• Al₃ l₃

A negatively-charged ion.

• atom
• cation
• anion
• electron

Write the formula for sodium and sulfur

• Na₂S
• NaS₂
• Na₂S₂
• NaS

Write the formula for potassium and nitrogen

• KN
• KN₃
• K₃N₃
• K₃N

Tags

NGSS.MS-PS1-1

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

• KO.
• K₂O.
• K₂O₂.
• KO₂.

Tags

NGSS.HS-PS1-1

What is the formula for lithium and oxygen

• Li₂O

• LiO₂

• LiO

• OLi

Tags

NGSS.MS-PS1-1

Elements on the LEFT side of the periodic table will most likely form:

• Positive ions
• Negative ions
• Neutral Ions
• None of these

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Magnesium bromide is an ionic compound with the chemical formula MgBr₂.  What does the "2" tell you?

• There are 2 bromide ions for every magnesium ion
• Bromide has a 2- charge
• Bromide has a 2+ charge
• There are 2 magnesium ions to every bromide ion

If my charge becomes 3+ what does that say about me?

• I am gaining 3 electrons

• I am losing 3 electrons

• I am gaining 3 protons

• I have an atomic number of 3

Tags

NGSS.HS-PS1-7