Naming and writing ionic formulas and polyatomic ions

Ionic compounds are written with

• cation (+ ion) first then anion (- ion)
• anion (- ion) first then cation (+ ion)
• either way is fine
• polyatomic ions first

Ba⁺², Br^-1

• BrBa
• Br₂Ba₂
• BaBr₂
• Br₂Ba

Tags

NGSS.MS-PS1-1

Ca⁺², O^-2

• CaO
• OCa
• Ca_-2O₊₂
• Ca₂O₂

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The name of FeCl₂ is

• iron chloride
• iron (II) chloride
• iron (I) chloride
• iron dichloride

What do atoms of metals tend to do with their valence electrons when bonding with non-metals?

• share them
• donate them
• keep them and accept others
• keep them and give others

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the correct name for MgI₂?

• Manganese IV iodide
• Manganese diiodide
• Magnesium iodide
• Magnesium diiodide

Tags

NGSS.HS-PS1-2

What is the correct formula for aluminum phosphide?

• Al₃P₃
• AlP
• AlPO₄
• AlPO₃

Na₂S

• Sodium Sulfide
• Sodium Sulfate
• Sodium Sulfite
• Disodium Sulfide

Name this compound: 
NaBr

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

Name this compound: 
KF

• Potassium fluoride
• Potassium fluorite
• Fluorine potasside 
• Potassium fluorate