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Grade 12th pass9 grade science

What is the mass number of potassium 19​K40,?

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

Profile image of Jayesh Vashishtha
4 Years ago
Dear student,
 
The mass number of potassium (A)=40
the mass number is defined as the total number of protons and neutrons in an atom.
 
regards,
Team Askitiians