The electronic configuration $2, 8, 8, 2$ represents the element:

Argon

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Potassium

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Calcium

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Chlorine

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Solution

The correct option is C Calcium
The electronic configuration 2,8,8,2 represents the element $calcium$ .

The atomic number is $2 + 8 + 8 + 2 = 20$ . It is the atomic number of $calcium$ . Its chemical symbol is $_{20}^{40} C a$ .

Hence, option C is correct.

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Similar questions

Q. The electronic configuration of calcium is

2, 8, 8, 2

. Find the valency of the element.

Why is the electronic configuration of calcium 2,8,8,2 but not 2,8,9,1?

The electronic configuration of calcium is 2,8,8,2. So why we can't write it as 2,8,9,1?

Q. Metal

A

has electronic configuration of 2,8,1 and metal

B

has 2,8,8,2 which is more reactive. The metal

A

is:

Metal A has electronic configuration of 2, 8, 1 and metal B has 2, 8, 8, 2 which is more reactive. Identify these metals and give their reactions with dil HCl.

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The electronic configuration 2,8,8,2 represents the element:

The correct option is C CalciumThe electronic configuration 2,8,8,2 represents the element calcium.The atomic number is 2+8+8+2=20. It is the atomic number of calcium. Its chemical symbol is 4020Ca.Hence, option C is correct.

The electronic configuration $2, 8, 8, 2$ represents the element:

The correct option is C Calcium
The electronic configuration 2,8,8,2 represents the element $calcium$ .

The atomic number is $2 + 8 + 8 + 2 = 20$ . It is the atomic number of $calcium$ . Its chemical symbol is $_{20}^{40} C a$ .

Hence, option C is correct.