Ionic Names and Formulas with Polyatomic Ions and Type II Cations

An -ate or -ite at the end of a compound name usually indicates that the compound contains ____.

• fewer electrons than protons

• neutral molecules

• only two elements

• a polyatomic anion

What does an -ite or -ate ending in a polyatomic ion mean?

• Oxygen is in the formula.

• Sulfur is in the formula.

• Nitrogen is in the formula.

• Bromine is in the formula.

Which of the following formulas represents an ionic compound?

• CS₂

• BaI₂

• N₂O₄

• PCl₃

Tags

NGSS.HS-PS1-3

How do you write the chemical formula for the polyatomic ion ammonium?

Which of the following is the correct formula for calcium nitrate?

Tags

DOK Level 2: Skill/Concept

• Potassium Nitrate

• Potassium Nitrite

• Potassium Nitride

• Potassium Nitrogen

Which of the following is a polyatomic ion?

• +1

• +2

• +3

• +4

Which of the following is the correct formula for iron(III) phosphate?

Tags

DOK Level 2: Skill/Concept

Write the ionic formula for the compound formed between barium and nitrate.