Question

The nucleous of the element having atomic number 25 and atomic weight 55 will contain
1)25 Protons and 30 Neutrons
2)25 Neutrons and 30 Protons
3)55 Protons
4)55 Neutrons
which one option is correct of the above question? ? ... and explain the answer.....​

Answer 1

Answer:

1 answer is correct because the prote is equal to atomic no of element

Answer 2

Answer:option 1

atomic number=number of protons

atomic weight(mass number)=number of protons+number of neutrons

here given atomic number=25=number of protons

number of neutrons=atomic weight-number of protons=55-25=30

hence answer is option 1

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