An atom of element a has 91 protons. what would the element's atomic number be?

➷ The elements atomic number would be 91. The atomic number is simply the number of protons.

Extra info: The atomic mass would be the total of the number of protons and neutrons.

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The atomic number would be 91

The atomic number or proton number of a chemical element is the number of protons found in the nucleus of an atom. As we know that protons are positively charged so there must be the same number of negative charged particles too in an atom to keep it stable. The number of electrons or the number of protons is called the atomic number of an element which is responsible for the chemical properties of elements

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