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Electronic Configuration

Element A h...

Question

Element $A$ has electronic configuration 2,7. $B$ has configuration 2,8,6. $C$ has configuration 2,8 while $D$ has 2,8,7. Which element will show similar chemical properties?

A

and

C

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A

and

D

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B

and

C

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B

and

D

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Solution

The correct option is B $A$ and $D$
The elements with the same number of electrons in the outermost shell have similar chemical properties. Thus $A$ and $D$ have similar chemical properties.

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Similar questions

A

B

(a) 2, 8

(b) 2, 8, 4

(d) 2, 8, 7

2, 8, 6

Study the reaction given below and write the electronic configuration of $C l^{-}$ when Cl is 2, 8, 7.

$C l + e^{-} \to C l^{-}$

3 s^{2} 3 p^{5}

3 s^{1}

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