An element x has mass number 4 and atomic number 2. write electron, protons, neutrons present in it and its valency.
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electron - 2
proton- 2
neutron-3
valency-2
please mark as brainlist
proton- 2
neutron-3
valency-2
please mark as brainlist
Pranjal123456:
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Your answer is wrong please check it.
Answered by
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No of protons = No. of electrons = Atomic no. =2
Neutrons = Mass number - Atomic no. = 2
It has 0 valency because it forms a complete duplet structure.
Moreover for your understanding, you know that an element with atomic no. 2 is Helium which is a noble gas present in 0 group of periodic table so it's valency is 0.
Hope this helps you and this answer is 100% correct.
Neutrons = Mass number - Atomic no. = 2
It has 0 valency because it forms a complete duplet structure.
Moreover for your understanding, you know that an element with atomic no. 2 is Helium which is a noble gas present in 0 group of periodic table so it's valency is 0.
Hope this helps you and this answer is 100% correct.
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