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The position of three elements A, B and ...

The position of three elements A, B and C in the periodic Table is shown below:

(a) State whether A is a metal or non-metal
(b) State whether C is more reactive or less reactive than A
( c) Will C be larger or smaller in size than B?
(d) Which type of ion, cation or anion, will be formed by element C?

Text Solution

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a) A is a non metal.
b) C is less reactive than A, as reactivity decreases down the group M halogens.
c) C will be smaller in size than B as moving across a period, the nucleus come closer to the nucleus
d) A will form an anion as it accepts an electron to complete its octet
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