The atomic weight of an element is 23 and its atomic number is 11. The number of protons,electrons and neutrons respectively present in the atom of the element are:

11, 11, 12

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12,12,11

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11,12,11

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12,11,12

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Solution

The correct option is A 11, 11, 12
The atomic number of the element is 11. Hence it contains 11 protons and 11 electrons since the element is neutral.

Its mass number is 23 and hence it contains (23-11) = 12 neutrons.

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The atomic weight of an element is 23 and its atomic number is 11. The number of protons,electrons and neutrons respectively present in the atom of the element are:

The correct option is A 11, 11, 12The atomic number of the element is 11. Hence it contains 11 protons and 11 electrons since the element is neutral. Its mass number is 23 and hence it contains (23-11) = 12 neutrons.

The correct option is A 11, 11, 12
The atomic number of the element is 11. Hence it contains 11 protons and 11 electrons since the element is neutral.

Its mass number is 23 and hence it contains (23-11) = 12 neutrons.