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Grade 12th pass9 grade science

The atom of an element is made up of 4 protons, 5 neutrons and 4 electrons. What is its atomic number and mass number ?

Profile image of Harshit Singh
4 Years agoGrade 12th pass
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1 Answer

Profile image of Yash Patari
4 Years ago
Dear student 

Given,

No of proton = 4

No of neutron = 5

No of electron = 4

Therefore , The atomic number = 4

The mass number = 4 + 5 = 9

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