Structure and Bonding (Foundation 1)

(1)What happens when an atom turns into an ion?
It loses or gains electrons
It forms a compound
It shares electrons
It gets bigger
(2)Which of the following are characteristics of ionic compounds like sodium chloride (Common Salt)?
Brightly coloured
A low melting point
Conduct electricity when liquid but not when solid
Conduct electricity when solid but not when liquid
(3)What is the difference between the nucleus of atoms of two isotopes of the same element?
They have different numbers of protons
They have different numbers of neutrons
They have different numbers of electrons
They have different numbers of bonds
(4)When a solid melts it does so because its particles...?
Have expanded due to the heat and now take up more room
Have gained enough potential energy to move freely in any direction
Have gained energy and are now vibrating more slowly
Have gained sufficient energy to overcome the forces of attraction between them
(5)

Pick the correct description of dissolving.

A solvent dissolves in a solution to give a solute
A solute dissolves in a solution to give a solvent
A solute dissolves in a solvent to give a solution
A solid dissolves in a salt to give a solution
(6)

An element has a mass number of 23 and a proton number of 11. Choose the correct number of neutrons, protons, electrons and the group the element belongs in.
12 neutrons, 11 protons and 12 electrons, Group 1
12 neutrons, 11 protons and 12 electrons, Group 3
12 neutrons, 11 protons and 11 electrons, Group 1
12 neutrons, 11 protons and 11 electrons, Group 3
(7)

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Electrons exist in particular energy levels or shells. Pick the true statement from the following.

The lowest energy level is found in the nucleus
The lowest energy level is found nearest the nucleus
All energy levels have the same energy
The lowest energy level is found furthest away from the nucleus
(8)Sulphur has 16 electrons. What is the correct electron arrangement for an atom of sulphur?
2,8,5
3,8,5
3,8,6
2,8,6
(9)When atoms turn into ions they lose or gain electrons in order to achieve a full outer shell. An aluminium atom has 13 electrons (2,8,3) what happens when it becomes an ion?
It loses 3 electrons
It gains 3 electrons
It loses 5 electrons
It gains 5 electrons
(10)

A spectacular example of a
chemical reaction in which ionic compounds are formed.

What is an ionic compound made up of ?

Negative metal ions and positive non-metal ions
Positive metal ions and negative non-metal atoms
Uncharged metal and non-metal atoms
Positive metal ions and negative non-metal ions

     

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