An atom has electronic configuration 2, 8, 8. (a) What is the atomic number of this element? (b) To which of the following elements would it be chemically similar? (Atomic numbers are given in parentheses.) N(7) F(9) Cl(17) Ne(10)
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An atom consists of 18 electrons.
(a) Atomic numver = no. of electrons
So, the atomic number is 18.
(b) It is Argon atom
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thE atomic number is (2+8+8) = 18 and the element will be similar to Ne(10)
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