the atom of element has mass number 20 and atomi no 10 find number of proton electron and neutron wirte is electronic configuration what will be its valency
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________________________________________Atomic number(Z)-10;Mass number(A)-20
Number of proton=Number of electron=Atomic number.Hence there are 10 protons and 10 electrons.
The number of neutrons is 10
Electronic cinfiguration-2,8
Its valency is 0 as it is stable according to your question.
============================================Hope it helps
________________________________________Atomic number(Z)-10;Mass number(A)-20
Number of proton=Number of electron=Atomic number.Hence there are 10 protons and 10 electrons.
The number of neutrons is 10
Electronic cinfiguration-2,8
Its valency is 0 as it is stable according to your question.
============================================Hope it helps
soumyakantidasp6pxof:
No. Of neutrons = mass no. - atomic no. = 20 -10 = 10
E config= 1s2 2s2 2p6
Full filled last orbital (2p in this case). So ultimate stability. Valency is zero. Inert substance. Element is neon gas.
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