A Level Chemistry - Periodic Table & Energy - 1 - Exam Style Questions with Answers

Created on February 18, 2023 By

paruppts12

ALVL_OCR_CHE_3_PERIODIC_1

1 / 10

Which trend in the periodic table is correct?

Melting point decreases from lithium to carbon

First ionisation energy decreases from lithium to caesium

Boiling point decreases from fluorine to iodine

First ionisation energy increases from nitrogen to oxygen

2 / 10

Which statement best explains why phosphorus has a larger first ionisation energy than sulfur?

P atoms have an odd number of electrons, while S atoms have an even number

P atoms lose an electron from the3s sub shell, while S atoms lose an electron from the 3p subshell

P atoms have less repulsion between p-orbital electrons than S atoms

P atoms have a smaller nuclear charge than S atoms

3 / 10

What determines the order of elements in the Periodic Table?

Number of electrons in the outer shell

Number of protons in the nucleus

Relative atomic mass

First ionisation energy

4 / 10

Which p-block element contains atoms with one unpaired electron?

C

B

N

O

5 / 10

A

D

B

C

6 / 10

Consecutive elements X, Y and Z, are in the third period of the periodic table.
Element Y has the highest first ionisation energy
and the lowest melting point of these three elements.
What could be the identities of X,Y and Z?

Magnesium, aluminium, silicon

Aluminium, silicon,phosphorus

Sodium, magnesium, aluminium

Silicon,phosphorus, sulfur

7 / 10

Which element has the highest melting point?

Chlorine

Silicon

Phosphorus

Sulfur

8 / 10

Which statement below shows the correct information about diamond and graphite?

Diamond is macromolecular and graphite is simple molecular

The bond angles in the two structures are not the same

All the valence electrons are covalently bondedin both graphite and diamond

Diamond and graphite both conduct electricity due to delocalised N electrons in their structure

9 / 10

Which of the following metals would have the highest melting point?

Na

Mg

Al

K

10 / 10

C

D

B

A

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