You are given an element 35/17 A
1) Find out the number of protons and neutrons
2) Write the electronic configuration and deduce its valency.
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No of protons = 17
Atomic number= no. of protons + no.of neutrons .
hence no. of neutrons =35-17
=18
electronic configuration= [Ne]3s23p5
Valency = 1
Atomic number= no. of protons + no.of neutrons .
hence no. of neutrons =35-17
=18
electronic configuration= [Ne]3s23p5
Valency = 1
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