An atom of an element contains 29 electrons and 35 neutrons ? Deduce :

cbse
structureofatom

#1

An atom of an element contains 29 electrons and 35 neutrons ? Deduce :
(a) number of protons
(b) electronic configuration of the element ?


#2

(a) No. of protons = No. of electrons = 29.
(b) 1${{s}^{2}}$2${{s}^{2}}$2${{p}^{6}}$3${{s}^{2}}$3${{p}^{6}}$3${{d}^{10}}$4${{s}^{1}}$