An atom of an element has 11 protons, 11 electrons and 12 neutrons. What is the the atomic mass?

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Solution

Atomic mass is the sum of neutrons and protons.

Atomic mass of the given element = 11+12=23.

Sodium fits the profile of the described element. Its atomic mass is 23.

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Q. An atom has mass number

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and atomic number

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. How many protons, electrons and neutrons are present in the atom?

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An atom of an element has 11 protons, 11 electrons and 12 neutrons. What is the the atomic mass?

Atomic mass is the sum of neutrons and protons. Atomic mass of the given element = 11+12=23. Sodium fits the profile of the described element. Its atomic mass is 23.

Atomic mass is the sum of neutrons and protons.

Atomic mass of the given element = 11+12=23.

Sodium fits the profile of the described element. Its atomic mass is 23.