how many electron proton and neutron will be there in an element x is equal to 19 and atomic number 9 what will be valency of the unit
Answers
Answered by
20
Atomic no.= no. of proton = no. of electron= 9
Atomic Mass= no. of proton+no. of neutron
19=9+no. of neutron
no. of neutron = 10
Valency can be calculated by electronic configuration => K L = 2 , 7
Hence it will gain 1 electron to complete it's octet therefore valency =1-
Atomic Mass= no. of proton+no. of neutron
19=9+no. of neutron
no. of neutron = 10
Valency can be calculated by electronic configuration => K L = 2 , 7
Hence it will gain 1 electron to complete it's octet therefore valency =1-
Similar questions