Question

(c) Protons and neutrons
(d) None of these
(ix) Which one of the following is a correct electronic configuration of so
(a) 2,8
(b) 8, 2, 1
(c) 2, 1,8
(d) 2, 8, 1
Write true or False :
(1) The size of the nucleus is the same as the size of an atom. F
(ii) The protons and the neutrons have the same mass. F
(in An element with atomic number 18 has 18 neutrons.f?
(iv) Two elements can have the same atomic number.
Structure
wil was plum
au1 is called as
mass of electron is 11197
(1) An atom is stahl
thes
and ne
Puddi​

Answer 1

Answer:

d 2,8,1 is the correct electronic configuration

Answer 2

Answer:

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