You Will Need a Databook Or Periodic Table for Some Parts of This HW

You will need a Databook or periodic table for some parts of this HW.

1) Write down the symbols for 2 elements that are considered to be;

a) Metals

b) Non-metals

c) Solids

d) Liquids

e) Gases (5 marks)

2) Write down the names of 2 elements that are considered to be;

a) Alkali metals

b) Earth alkali metals

c) Transition metals

d) Halogens

e) Noble Gases (5 marks)

3) Write down the symbols of any 2 elements that are considered to be;

a) In the same group

b) In the same period

c) Physically similar looking

d) Of similar chemical reactivity (4 marks)

4) Draw a diagram to show the structure of an atom and clearly label each of the following on your diagram;

a) Nucleus

b) Protons

c) Neutrons

d) Electrons (1 mark)

5) Why is an atom neutral? (1 mark)

6) Copy and complete the following table;

Particle / Mass / Charge / Location
Proton
Neutron
Electron

(3 marks)

Questions continued over the page ------>

7) Consider the following list of elements;

Magnesium / Oxygen / Carbon / Chlorine / Sodium / Nitrogen

a) Which element has an atomic number 17?

b) Which element has 11 electrons in each atom?

c) Which element has a charge of 8+ on its nucleus? (3 marks)

8) For atomic numbers 3, 10 and 17, write down;

a) The name of the element

b) The electron arrangement (3 marks)

You will need a Databook or periodic table for some parts of this HW.

1) For the following elements list the number of protons, electrons and neutrons.

(a) 3 (b) 40 (c) 32

H Ca S

1 20 16 (3 marks)

2) Explain what is meant by

a) A molecule

b) A chemical formula

c) A diatomic molecule (3 marks)

3) Decide if each of the following compounds are IONIC or COVALENT.

(a) sodium chloride (e) CH3Cl

(b) hydrogen chloride (f) MgO

(d) aluminium nitrate (h) FeCl2 (8 marks)

4) Write the formula using either the valency or prefix rule for the following;

(a) sulphur trioxide (e) carbon monoxide

(b) hydrogen oxide (f) nitrogen chloride

(d) calcium fluoride (h) hydrogen iodide (8 marks)

5) Draw orbital or bonding diagrams for the following;

(a) Silicon (e) Carbon dioxide

(b) Phosphorus hydride (i) Argon

(d) Hydrogen chloride (k) Phosphorus (8 marks)

You will need a Databook or periodic table for some parts of this HW.

1) Write formula equations for the following examples;

a) carbon + chlorine carbon tetrachloride

b) calcium + fluorine calcium fluoride

c) hydrogen + sulphur hydrogen sulphide

d) lithium + oxygen lithium oxide

(4 marks)

2) Copy and complete the following table by writing the formula using either the valency or prefix rule, and then calculating the formula mass.

Chemical Compound / Formula / Formula Mass
Dinitrogen Trichloride
Calcium Bromide
Potassium Oxide

(6 marks)

3) Copy and complete the blanks in the following table;

Name of Compound and state at room temperature / Melting/boiling point (high/low) / Solubility in water
(s/vs/i)
(databook) / Conducts Electricity in solution?
(y/n) / Type of Bonding (covalent or ionic)
Calcium oxide (s) / high / s / y
Sulphur dioxide (g) / s / n / covalent
Barium chloride (s) / vs / y / ionic
Potassium iodide (s) / high / y / ionic
Carbon monoxide (g) / low / s / n
Nitrogen dioxide (g) / low / s / covalent
Magnesium chloride (s) / high / vs / ionic
Water (l) / low / N/A / n

(8 marks)