Covalent and Ionic Compounds

covalent compounds

100

When electrons are not shared equally what type of bond is formed

Polar

200

When electrons are shared equally what type of bond is formed?

nonpolar

300

Covalent bonds are made of what type of elements

nonmetals

400

What two characteristics make a molecule polar

different bond types

asymmetrical shape

500

Why do covalent compounds have prefixes in their names?

nonmetals can combine in more than one way

ionic compounds

100

What type of elements make ionic compounds

ions (typically metals and nonmetals)

200

What is the ending for all monatomic ions?

-ide

300

What are polyatomic ions?

ions with more than one element

400

Which type of compound has high melting points?

ionic

500

Explain why we do not use added prefixes when naming ionic compounds

ions only combine in one way

Naming ionic compounds

100

CaCO₃

Calcium carbonate

200

Fe(NO₂)₃

Iron (III) nitrite

300

Na₂SO₃

sodium sulfite

400

BaF₂

Barium Fluoride

500

Al₂(Cr₂O₇)₃

Aluminum dichromate

Naming covalent componds

100

CS₂

Carbon Disulfide

200

SiI₄

Silicon tetraiodide

300

BCl₃

Boron trichloride

400

SCl₆

Sulfur hexachloride

500

O₂F₂

dioxygen difluoride

Writing formulas

100

Ionic

copper (II) nitrate

Cu(NO₃)₂

200

Ionic

Sodium oxide

Na₂O

300

Covalent

dinitrogen pentoxide

N₂O₅

400

Covalent

Phosphorus Trioxide

PO₃

500

Ionic

Aluminum Chromate

Al(CrO₄)₃