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Answer:  Atomic Number is 6

Explanation:  The number of protons present in the nucleus of an atom is known as Atomic Number.

Atomic Number helps in determining the chemical properties of an atom.

Thus it is given that the given ion contains 6 protons thus the atomic number of the ion will be six.

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An ion with six protons, seven neutrons, and a charge of 2+ has an atomic number of 6

WHAT IS ATOMIC NUMBER:

  • The atomic number of an element is determined by the number of protons in the nucleus of its atom. There are three subatomic particles in an atom namely: proton, electron, and neutron.

  • The proton, which is the positively charged subatomic particle is always equal to the atomic number of that element.

  • Therefore, if an ion has six protons, seven neutrons, and a charge of 2+. It has an atomic number of 6.

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