Positions of elements, namely ‘X’ and ‘Y’ of group 17 in the periodic table, are shown.
$\begin{matrix} G r o u p 17 - X - Y \end{matrix}$
Predict the correct statement.

X is a metal

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Y is less reactive than X

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X is less reactive than Y

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X will form a cation

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Solution

The correct option is B Y is less reactive than X

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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?

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.

Q. Positions of elements, namely ‘X’ and ‘Y’ of group 17 in the periodic table, are shown.

Group 17

Predict the correct statement.

Q. (a) What are the periods and groups in a periodic table? Give two characteristics of each.
(b) In terms of electronic configurations, explain the variation in the size of the atoms of the elements belonging to the same period and same group.
(c) Given alongside is a part of the periodic table. As we move vertically downward from Li to Fr:

Li	Be
Na
K
Rb
Cs
Fr	Ra

(i) What happens to the size of atoms?
(ii) What happens to their metallic character?
(d) Name two properties of elements whose magnitudes change when going from top to bottom in a group of the periodic table. In what manner do they change?
(e) Rewrite the following statement after correction, if necessary:
Groups have elements with consecutive atomic numbers.

Complete the following table of products of two monomials:

First → Second ↓	3x	–6y	4x²	–8xy	9x²y	–11x³y²
3x
–6y
4x²
–8xy
9x²y
–11x³y²

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Positions of elements, namely ‘X’ and ‘Y’ of group 17 in the periodic table, are shown. Group 17−X−Y Predict the correct statement.

The correct option is B Y is less reactive than X

Positions of elements, namely ‘X’ and ‘Y’ of group 17 in the periodic table, are shown.
$\begin{matrix} G r o u p 17 - X - Y \end{matrix}$
Predict the correct statement.