Question 6 c The position of three elements A - B and C in the periodic table are shown below Vbegin array -c- c - hline-lllhline-8-11Nhinearray Will C be larger or smaller in size than B -

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Standard IX

Chemistry

Radioactivity

Question 6 c ...

Question

Question 6 (c)
The position of three elements A, B and C in the periodic table are shown below –
$\begin{matrix} Group 16 & Group 17 - & - - & A - & - B & C \end{matrix}$
Will C be larger or smaller in size than B?

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Solution

C will be smaller in size than B as on moving across a period, the nuclear charge increases and therefore electrons come closer to the nucleus. Hence size decreases across a period.

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Q. Option 6 (a)
The position of three elements A, B and C in the periodic table are shown below –

\begin{matrix} Group 16 & Group 17 - & - - & A - & - B & C \end{matrix}

State whether A is a metal or non-metal.

Question 6 (b)
The position of three elements A, B and C in the periodic table are shown below –
$\begin{matrix} Group 16 & Group 17 - & - - & A - & - B & C \end{matrix}$

State whether C is more reactive or less reactive than A.

Q. The position of three elements A, B, and C in the periodic table are shown below:

\begin{matrix} G r o u p - 16 & G r o u p - 17 - & - - & A - & - B & C \end{matrix}

(a) State whether A is a metal or non-metals .
(b) State whether C is more reactive or less reactive than A.
(c) Will C be larger or smaller in size then B?
(d) Which type of ion, cation or anion will be formed by element A?
(e) Give two examples of group 17.

Question 6 (d)
The position of three elements A, B and C in the periodic table are shown below –
$\begin{matrix} Group 16 & Group 17 - & - - & A - & - B & C \end{matrix}$

Which type of ion, cation or anion, will be formed by element A?

The position of three elements A,B and C in the periodic table are shown below: [5 MARKS]

(a) State whether A is a metal or non-metals.

(b) Will C be larger or smaller in size than B?
(C) State whether C is more reactive or less reactive than A.
(d) Which type of ion, cation, or anion will be formed by element A?
(e) Give two examples of group 17.

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Question 6 (c) The position of three elements A, B and C in the periodic table are shown below – Group 16Group 17−−−A−−BC Will C be larger or smaller in size than B?

C will be smaller in size than B as on moving across a period, the nuclear charge increases and therefore electrons come closer to the nucleus. Hence size decreases across a period.

Question 6 (c)
The position of three elements A, B and C in the periodic table are shown below –
$\begin{matrix} Group 16 & Group 17 - & - - & A - & - B & C \end{matrix}$
Will C be larger or smaller in size than B?