Properties of Metals (Cambridge O Level Chemistry)

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?

	conducts electricity	melts below 25℃
A
B
C
D

Some of the properties of four different elements Q, P, R and S are listed below:

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.

Which of the elements are metals?

Some properties which indicate the differences in elements are listed.

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

Which two properties increase across a period of the Periodic Table?

The properties of four substances are shown.

Which substance is a metal?

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

Element Y is malleable and ductile.

Which correctly describes the properties of element Y?

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

Some properties of elements K, L, M and N are given.

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

Which of the elements are metals?