Stock System - Naming Ionic Compounds

Stock System

Naming Ionic Compounds

Multiple Choice

When naming ionic compounds you always write the name of the positive element  _______ .

• first
• second
• with "ide"
• with a prefix

Multiple Choice

When naming a compound, what must the last part be?

• the element with "ide" at the end

• the element with the ending "ite"

• the name of the element

• the element with "ide" at the end, unless its a polyatomic ion

Representative elements have predictable charges.

Stock System

• Most transition metals and large p block metals have variable charge

• Roman numeral used to indicate the charge of the cation

• Exceptions to stock system (do not use the roman numeral): Groups 1 & 2, Ag⁺¹, Zn⁺², Cd⁺², Al⁺³

Multiple Choice

When naming ionic compounds with transition metals you need to include roman numerals to show the _____ of the metal..

• atomic number

• mass number

• charge

• ionization energy

Multiple Select

Which groups are exceptions to the stock system?

• 1

• 2

• 3

• 4

Multiple Choice

What is the formula for copper(I) sulfate?

• CuSO₃

• CuSO₄

• Cu₂SO₃

• Cu₂SO₄

Multiple Choice

The chemical formula of iron (III)bromide is

• FeBr

• Fe(III)Br

• FeBr₃

• Fe₂Br₃

Multiple Choice

The chemical formula of lead (IV) nitrate is

• PbN₄

• PbNO₃₄

• Pb(NO₃)₄

• Pb₃NO₄

Cation charge from chemical formula

• Anions: get the charge from periodic table or charge of polyatomic anion.

• Get total (-) charge by multiplying subscript by charge.

• Total (-) charge = Total (+) charge

• Divide (+) charge by cation subscript

• Roman numeral is the charge of ONE cation.

Cation charge from chemical formula

• Anions: get the charge from periodic table or charge of polyatomic anion.

• Get total (-) charge by multiplying subscript by charge.

• Total (-) charge = Total (+) charge

• Divide (+) charge by cation subscript

• Roman numeral is the charge of ONE cation.

Multiple Choice

How do the following two elements bond together?

K¹⁺ S^2-

• KS

• K₈S

• K₆S₃

• K₂S

Multiple Choice

How do the following two elements bond together?

Na¹⁺ F^1-

• NaF

• NaF₃

• Na₃F

• Na₁F₂

Multiple Choice

What is the name of the compound Na₂(SO₄)?

• Sodium sulfate

• Sodium sulfide

• Sodium sulfite

• Sodium sulfuroxide

Multiple Choice

When naming a compound, which of these is written first?

• Metal

• Nonmetal

• Anion

• Cation

Multiple Choice

Which of the following combinations would need roman numerals in the name?

• potassium + fluorine

• beryllium + oxygen

• boron + iodine

• gold + oxygen

Multiple Choice

Name the following ionic compound: Cs₂S

• cesium sulfide

• cesium sulfate

• cesium II sulfate

• cesium II sulfide

Multiple Choice

Name the following ionic compound: BeCl₂

• beryllium chlorine

• beryllium II chloride

• beryllium chloride

• beryllium dichloride

Multiple Choice

Name the ionic compound SnSe₂

• Tin diselenide

• Tin (IV) Selenide

• Tin selenide

• Tin (II) triselenide

Multiple Choice

LiBr is called

• lithium bromine

• lithium (I) bromine

• lithium bromide

• lithuim (I) bromide

Multiple Choice

The name of FeCl₂ is

• iron chloride

• iron (II) chloride

• iron (I) chloride

• iron dichloride