An atom of an element has 11 protons, 11 electrons and 12 neutrons. The atomic mass of an atom is?
ایک عنصر کے ایٹم میں 11 پروٹون، 11 الیکٹران اور 12 نیوٹران ہوتے ہیں۔ ایک ایٹم کا جوہری ماس _____ ہے؟
Answer: 23
Explanation
The atomic mass (A) is the sum of protons and neutrons in the nucleus. In this case:
- Protons (Z) = 11
- Neutrons (N) = 12
- Atomic Mass (A) = Z + N = 11 + 12 = 23
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GENERAL SCIENCE (1 times)
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