Forming Ionic Compounds

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

• Ca₂Br₂

• CaBr

• Ca(br)₂

• CaBr₂

Tags

NGSS.MS-PS1-1

How do the following two elements bond together?
Na¹⁺  F^1-         

• NaF

• NaF₃

• Na₃F

• Na₁F₂

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

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

• KO.

• K₂O.

• K₂O₂.

• KO₂.

Tags

NGSS.MS-PS1-1

In the chemical formula for an ionic compound, which item is written first?

• positive ion

• negative ion

• subscript

• the female

Name the following ionic compound: BeCl₂

(a)  

• beryllium chloride

• beryllium chlorine

• beryllium(II) chloride

• beryllium dichloride

What would be the charge of a potassium ion?

• 0

• -1

• +1

• -7

• +7

What is the ionic compound formed between Ca and Br?

• CaBr

• CaBr₂

• Ca₂Br

• Ca₂Br

Ionic compounds are written with

• cation (+ ion) first then anion (- ion)

• anion (- ion) first then cation (+ ion)

• either way is fine

• polyatomic ions first

Name this compound: 
KF

• Potassium fluoride

• Potassium fluorite

• Fluorine potasside 

• Potassium fluorate

Anions tend to be __________ and cations tend to be __________.

• metals, metals

• nonmetals, nonmetals

• metals, nonmetals

• nonmetals, metals

Answer explanation

Anions tend to be nonmetals because they gain electrons, while cations tend to be metals because they lose electrons.