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Two atoms with different mass number but the same atomic number are called A) elements. B) ions. C) isotopes. D) nuclei.
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Two atoms with different mass number but the same atomic number are called A) elements. B) ions. C) isotopes. D) nuclei.

User RAKESH HOLKAR
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C isotopes is the correct answer. Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number.All isotopes of a given element have the same number of protons but different numbers of neutrons in each atom.

Hope this helps! :)


User Dominix
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What you are describing is a difference in the nucleus of neutrons.

Elements: these chemicals are what is on the periodic table.

ions: These have either too many electrons or too few electrons from the elements found on the periodic table.

Nuclei: are the part of the atom found at the center.

The three above are NOT the answer.

The answer is C

User Jeryl Cook
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