Topic 1 – Atomic Structure and the Periodic Table (Exam Q's)

Question 1

Substance A contains only one type of atom.
Substance A does not conduct electricity.
Which type of substance is A?

Answer 1

non-metallic element

Question 2

Substance B contains two types of atoms.
The atoms are chemically combined together in fixed proportions.
Which type of substance is B?

Answer 2

compound

Question 3

What is the name of the elements in Group 0 of the periodic table?

Answer 3

noble gases

Question 4

Which statement about the elements in Group 0 is correct?
Tick (✓) one box.
All elements in the group are very
reactive.
All elements in the group form negative
ions.
The boiling points increase down the
group.
The relative atomic masses (Ar)
decrease down the group

Answer 4

the boiling points increase down the group

Question 5

Give the meaning of ‘isotopes’.

Answer 5

(atoms with the) same number of protons

(but with) different numbers of neutrons

Question 6

The length of a fine particle cube is 10 times smaller than the length of a
coarse particle cube.
How does the surface area to volume ratio of the fine particle cube
compare with that of the coarse particle cube?

Answer 6

the surface area to volume ratio of the fine particle is 10 times greater