Ionic Bonds Binary and Polyatomic

Binary ionic compounds consist of:

• 1 type of element

• 2 types of elements

• 3 types of elements

• 4 types of elements

A binary ionic compound is a

• metal + metal

• metal + non-metal

• metalloid + metalloid

• non-metal + non-metal

In a binary ionic compound, you change the SECOND element's ending to

• ate

• ine

• ide

• ium

Name this compound: 
MgCl₂

• Magnesium₂ chloride

• Magnesium dichloride

• Magnesium chloride

• Magnesium chlorate

The chemical formula for potassium oxide is

• KO

• K₂O

• K₂O₂

• KO₂

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

Polyatomic compounds consist of

• Only 1 element

• Exactly 2 elements

• More than 2 elements

Polyatomic compounds are made of a

• metal + non-metal

• non-metal + non-metal

• metal + polyatomic ion

• non-metal + polyatomic ion

Name this polyatomic ion: (PO₄)^3-

• phosphide

• phosphate

• phosphine

• phosphinate

In bromate (BrO₃)^1-, the 1- applies to

• only the bromine

• one of the oxygen atoms

• all three oxygen atoms

• the entirety of BrO₃