Q. 34.3( 16 Votes )

In an atom the nu

Answer :

(a) M shell.


(b) 10 electrons. K shell has 2 electrons and L shell has 8 electrons. So, as given M shell has electrons equal to the number of electrons in K and L shells. So, its 2 + 8 = 10.


(c) Atomic number is equal to total number of electrons . so total electrons is equal to electrons in K, L and M shells, i.e. 2 + 8 + 10 = 20


(d) 1s22s22p63s23p64s2 – calcium


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