Ionic Bonding

Question 1

How are ions formed?

Answer 1

by electron loss or gain. normally in order to gain a full outer shell.

Question 2

What are the two types of ions?

Answer 2

cations: positively charged - lost an electron

anions: negatively charged - gained an electron

Question 3

How do you determine the charge of an atom/ion?

Answer 3

number of protons - number of electrons

Question 4

What is the charge of an atom (NOT AN ION)?

Answer 4

0

because the number of protons and electrons are the same (atomic number)

Question 5

What are the charges of ions in groups 1, 2 and 3

Answer 5

They form cations
group 1: 1+
group 2: 2+
group 3: 3+

Question 6

What are the charges of ions in groups 5, 6, and 7?

Answer 6

They form anions
group 5: 3-
group 6: 2-
group 7: 1-

Question 7

What are the charges of Ag, Cu, Fe1 and Fe2, Pb and Zn?

Answer 7

Ag+, Cu2+, Fe2+, Fe3+, Pb2+, Zn2+

Question 8

What are the charges of hydrogen, hydroxide, ammonium, carbonate, nitrate and sulfate?

Answer 8

H+, OH-, (NH4)+, (CO3)2-, (NO3)3-, (SO4)2-

Question 9

What are the compounds form with the ions we learned?

Answer 9

AgCl - silver chloride
CuO - copper (ii) oxide
FeCl2 - iron (ii) chloride
FeCl3 - iron (iii) chloride
PbO - lead (ii) oxide
ZnS - zinc sulfide

Hydrogen compounds:
H20 - water
HCl - hydrochloric acid
H2SO4 - sulfuric acid

Ionic Compounds:
NH4OH - ammonium hydroxide
NaOH - sodium hydroxide
K2CO3 - potassium carbonate
NaNo3 - sodium nitrate
CaSO4 - calcium sulfate