9.1 Properties of Metals | Cambridge O Level Chemistry Topic Questions 2023

11 mark

Most of the elements on the Periodic Table are metals. Metals can be distinguished from non-metals by differences in their physical properties.

Which row correctly describes a metal?

	Malleability	Heat & electrical conductivity
A	$\times$	$✓$
B	$✓$	$\times$
C	$✓$	$✓$
D	$\times$	$\times$

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11 mark

Properties of four elements are shown below.

Which of these elements is a metal?

	electrical conductivity when solid	electrical conductivity when liquid	melting point ℃
A	low	low	-7
B	high	low	801
C	high	high	1535
D	low	low	3550

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11 mark

A sample of element Y is shiny and can be shaped by hammering.

Which row of the table corresponds to the properties of element Y?

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1	K acts as a catalyst and its oxide reacts with hydrochloric acid
2	L is a dull dark grey solid that conducts electricity and has a melting point of 3600 ^oC
3	M is easily hammered into shape and has a high density
4	N has a melting point of 113 ^oC and forms an acidic oxide

1	Q melts at 1410 °C and forms an acidic oxide.
2	P has a high density and is easily drawn into wires.
3	R acts as a catalyst and its oxide reacts with acids
4	S is a red-brown solid used to make alloys.

1	metallic character
2	number of electron shells in an atom
3	number of protons in an atom
4	total number of electrons in an atom

	Electrical conductivity (solid)	Electrical conductivity (molten)	Melting Point / ^oC
1	✓	✓	2861
2	✓	✓	63
3	✗	✓	801

Properties of Metals (Cambridge O Level Chemistry)