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Question

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

A
Argon
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B
Potassium
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C
Calcium
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D
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 4020Ca.

Hence, option C is correct.

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