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Mtch the corr...

Question

Mtch the correct atomic radius with the element.
$\begin{matrix} E l e m e n t & A t o m i c r a d i u s (p m) B e & 74 C & 88 O & 111 B & 77 N & 66 \end{matrix}$

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Solution

$\begin{matrix} E l e m e n t & A t o m i c r a d i u s (p m) B e & 111 C & 77 O & 66 B & 88 N & 74 \end{matrix}$

All the given elements are of same period and along a period , atomic radii decreases because effective nuclear charge increases. Thus, he order of atomic radii is
O < N < C < B < Be or, Be = 11pm , O = 66 pm, C = 77 pm, B = 88 pm, N = 74 pm

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Similar questions

Q. Match the correct atomic radius with the element:

Element	Atomic radius (pm)
(a) $B e$	(p) $74$
(b) $C$	(q) $88$
(c) $O$	(r) $111$
(d) $B$	(s) $77$
(e) $N$	(t) $66$

Q. Among the elements

L i, N, C

B e

, one with the largest atomic radius is:

Q. Among the element

L i, N, C

B e

, one with the largest atomic radius is:

The atomic numbers of three elements A, B and C are given below :

Element Atomic number

A 5

B 7

C 10

(i) Which element belongs to group 18? (ii) Which element belongs to group 15?

(iii) Which element belongs to group 13? (iv) To which, period/periods do these elements belong?

C - C

S i - C

inter-atomic distance are

154 p m

188 p m

. the atomic radius of

S i

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