Please give the answer to the following question
Dear student
i)No,of protons = atomic number .
So, here no.of protons =7
ii)When atomic number =7, then the electronic configuration is 2,5
Thus when there are 5 electrons in the valence shell , the valency of the element becomes 8-5 = 3 [here 8 is the total no.of electrons which the valence shell can hold]
iii)Electronic configuration of element X is 2, 5
Regards
i)No,of protons = atomic number .
So, here no.of protons =7
ii)When atomic number =7, then the electronic configuration is 2,5
Thus when there are 5 electrons in the valence shell , the valency of the element becomes 8-5 = 3 [here 8 is the total no.of electrons which the valence shell can hold]
iii)Electronic configuration of element X is 2, 5
Regards