CAIE A-Level Chemistry AS 9.3.2 The Nature Possible Position in the Periodic Questions

Practise deducing element identities, groups and positions from trends in physical properties and reactions using CAIE 9701 AS questions.

Exam points

Deduce the identity, group and position of elements from their characteristic physical and chemical properties.

[Maximum number: 1]

X and Y are two elements from Period 3 of the Periodic Table.
Element X has a higher electrical conductivity than element Y . Element Y has a higher melting point than element X .

Which formula is a compound formed from element X and element Y ?

MgS

$\mathrm{Mg}_{2} \mathrm{Si}$

NaCl

$\mathrm{SiCl}_{4}$

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CAIE A-Level Chemistry AS 9.3.2 The Nature Possible Position in the Periodic Questions question 1