EduNinja

[Maximum number: 1]

Lithium and potassium are metals in Group I of the Periodic Table.
Lithium has a melting point of $181^{\circ} \mathrm{C}$ and a density of $0.53 \mathrm{~g} / \mathrm{cm}^{3}$ .
Which row describes the melting point and density of potassium?

melting point in ${ }^{\circ} \mathrm{C}$

density in $\mathrm{g} / \mathrm{cm}^{3}$

less than 181

less than 0.53

less than 181

greater than 0.53

greater than 181

less than 0.53

greater than 181

greater than 0.53

[Maximum number: 1]

Some information about properties of Group I elements is shown.

Table for Question 2 — CAIE IGCSE Chemistry

What are the values for X, Y and Z ?

X

Y

Z

63

252

0.26

63

39

0.26

39

63

1.53

63

39

1.53

[Maximum number: 1]

Which row shows properties of an element that is in the same group of the Periodic Table as lithium?

electrical

conductivity

density

in $\mathrm{g} / \mathrm{cm}^{3}$

high

0.97

high

8.93

low

0.07

low

3.12

CAIE IGCSE Chemistry 8.2 Group I Properties Topic Practice

Question 1

Question 2

Question 3