Question

atomic number of certain elements are given below, p is 8, q is 10, r is 15 and s is 18. among which are Nobel gas​

Answer 1

AnswerS Q is noble gas

It has completely filled valence electrons

Explanation:

Answer 2

Answer:

out of these : atomic number 10 and atomic number 18 are noble gases

Explanation:

atomic number 10 and atomic number 18 represent neon and argon respectively which are noble gases

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