Chemistry Revision Questions for the Exam

  1. Compare the mass, charge and location of the proton, neutron and electron in the atom
  2. Consider the neutral atoms below

4

19

56

197

16

127

235

  

He

F

Fe

Au

O

I

U

  

2

9

26

79

8

53

92

  

 

For each of the atoms state the:

    1. mass number
    2. atomic number
    3. number of protons
    4. number of neutrons
    5. number of electrons
  1. Name the first 30 elements of the periodic table and write the electronic configuration of each
  2. Name the elements with the following electronic configurations

    3. (a) 2,8,1 (b) 2,8,8 (c) 2,7 (d) 2,8,8,1

  3. Write down the electronic configuration of the following ions

    4. (a) K+ (b) Li + (c) Cl- (d) O2-

  4. How is the modern periodic table organised?
  5. Name an element with similar chemical properties to

(a) sodium (b) fluorine (c) Phosphorus (d) Iron

 

8. Write the symbol and charge for these ions:

NAME

ION

NAME

ION

1.1 sodium

 

1.2 hydroxide

 

1.3 sulfate

 

1.4 magnesium

 

1.5 nitride

 

1.6 nitrate

 

1.7 phosphate

 

1.8 ammonium

 

1.9 hydrogen

 

1.10 tin(11)

 

 

9. Name the following ionic compounds, list each of the cations and anions with the appropriate charge.

COMPOUND

NAME

CATION

ANION

2.1 Al2O3

 

 

 

2.2 H2S

 

 

 

2.3 BaF2

 

 

 

2.4 CuO

 

 

 

2.5 MnHPO4

 

 

 

2.6 NaI

 

 

 

2.7 K2O

 

 

 

2.8 AuCl

 

 

 

2.9 NiSO4

 

 

 

2.10 FeS203

 

 

 

 

10. Write the formula with the cation and anion including the charge for each of these ionic compounds

NAME

FORMULA

CATION

ANION

3.1 hydrogen sulfate

 

 

 

3.2 berillium carbonate

 

 

 

3.3 manganese(III) bromide

 

 

 

3.4 barium hydroxide

 

 

 

3.5 tin(II) chloride

 

 

 

3.6 sodium sulphide

 

 

 

3.7 iron(III) oxide

 

 

 

3.8 aluminium nitrate

 

 

 

3.9 aluminium nitrite

 

 

 

3.10 sodium hydrogen sulfite

 

 

 

 

 

11. Draw electron shell diagrams, including the number of protons, to show:

4.1 hydrogen atom

 

 

 

 

 

 

4.2 hydride

4.3 hydrogen ion

4.4 deuterium ion

 

 

 

 

 

 

4.5 neon

4.6 sodium ion

4.7 fluorine ion

 

 

 

 

 

 

4.8 aluminium ion

4.9 hydrogen molecule

 

 

 

Q1. Write the balanced formula of the following ionic substances:

(a) Sodium carbonate (b) Iron (II) iodide (c) Barium Sulphate

(d) Aluminium Sulphate (e) Tin (II) chloride (f) Chromium (III) fluoride

(g) Calcium peroxide (h) Silver Nitrate (i) silver nitrate

(j) Magnesium chloride (k) magnesium chlorate (l) Copper (I) acetate

(m) Sodium dichromate (n) Calcium hydroxide (o) potassium nitrate

(q) Lead (II) chloride (r) Iron(III) carbonate (s) Potassium hydrogen carbonate

(t) Aluminium oxide (u) Silver nitride (v) Calcium orthophosphate

(w) Lithium oxide (x) copper (II) sulphate

(y) copper (II) hydrogen sulphate (z) Zinc dihydrogen phosphate.