Question

An element Z has atomic number 16. Answer the following questions
on Z: [3]
(i) State the period and group to which Z belong.
(ii) State the formula between Z and Hydrogen.
(iii) What kind of a compound is this?

Answer 1

z = sulphur

belongs to period 3 and group 16

2) S + H2 = H2S

3) It is hydrogen sulfide.

Answer 2

solution

(i) Here z = 16
Electronic configuration of z = 1s² , 2s² , 2s6, 3s² , 3p⁴

so, we can we last electron goes in 3 sub shell

so, period = 3

Now, Block_

As we can see the last electron goes in p orbital .

so, this belongs to P block

At last Group_

When elements in P block then group is given by 12 + no. of e- in last P orbital

so, Group = 12 + 4 = 16
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Now, valency of z = 2

so, it form compound H2Z with Hydrogen.

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It is Acidic in nature

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Amrit⭐