Unit 6: Ionic Compounds

Vocabulary

100

What do we call the difference between the number of protons and electrons?

charge

200

What do we call a collection of element symbols with subscripts .. for example:  CaCl₂ or NaCl or Fe₂O₃

Chemical Formula

300

What do we call many nonmetal atoms bonded together, with one charge overall?

Polyatomic Ion

400

What do we call a positively charged ion?

cation

500

What do we call a negatively charged ion?

Anion

Ions

100

What is the chemical formula of the potassium ion?

K⁺¹

200

What is the chemical formula of the oxide ion?

O^-2

300

What is the chemical formula of iron (III) ion?

Fe⁺³

400

What is the chemical formula of hydroxide?

OH^-1

500

What is the chemical formula of nitrate?

NO₃^-1

WILD !!!

100

Draw a pictorial model of Mg₃N₂

See Board ... many possible answers

200

Draw a model showing the electron transfer process during the formation of calcium chloride from its neutral atoms.

See Board ...

300

What is the charge of the cation in CrO₂?

+4

400

What is the name of CrO₂?

Chromium (IV) oxide

500

Ammonium is NH₄¹⁺
Sulfate is SO₄​^2-​

What is the chemical formula of ammonium sulfate?

​​​​​​

(NH₄)₂SO₄

Binary

100

What is the chemical formula of sodium chloride?

NaCl

200

What is the chemical formula of calcium nitride?

Ca₃N₂

300

What is the chemical formula of Iron (III) oxide?

Fe₂O₃

400

What is the chemical formula of Magnesium oxide?

MgO

500

What is the charge of the cation in CuCl₂?

+2

Tertiary

100

What is the chemical formula of sodium hydroxide?

NaOH

200

What is the chemical formula of copper (II) nitrate?

Cu(NO₃)₂

300

What is the chemical formula of aluminum carbonate?

Al₂(CO₃)₃

400

What is the chemical formula of iron (III) phosphate?

FePO₄

500

What is the charge of the cation in Fe₃(PO₄)₂?

+2