Question

The electronic configuration of an
element is 2,8,8.
What is the atomic number the
element ?
Give the name and symbol of the
element ?​

Answer 1

Answer: The electronic configuration 2,8,8,2 represents the element calcium. The atomic number is 2+8+8+2=20.

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Answer 2

Answer:

atomic number of the element =18

name of element = Argon

symbol of element = Ar