What are the atomic numbers of elements whose outermost electrons are represented by (a) 3s¹ (b) 2p³ (c) 3p⁵?
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(a) 1s22s22p63s1;
Atomic number of the element is 11.
(b) 1s22s22p3;
Atomic number of the element is 7.
(c) 1s22s22p63s23p5;
Atomic number of the element is 17.
Atomic number also known as proton numbers of a chemical elements that number of protons that are found in nuclear of an atom.
It is also same like charge number of the nuclear.
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Answer
na
Explanation
no. of electron=1s²,2s²,3s¹. electron=11=na
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