Question

Find the atomic number, number of protons and number of neutrons, of element X Element X contains 5 electrons. Also identify the element X. [Atomic Mass of element X:11]​

Answer 1

Explanation:

X, where A stands for the atomic mass number which is the sum of protons and neutrons in the atom of an element and Z stands for an atomic number of the element which is the number of electrons in an atom of an element.

Atomic mass = Number of electrons + Number of neutrons

Atomic number = Number of protons = Number of electrons

Therefore, atomic mass =15+16=31 and atomic number is =15.

Answer 2

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