Question

1) An atom of the element is represented as 11x
(a) What does the numeral 23 indicate?
(b) What does the numeral 11 indicate?
(c) What is the number of protons in X?​

Answer 1

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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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Answer 2

Answer:

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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