An atom of the same element that differs by the number of neutrons is called:

anion

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cation

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element

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isotope

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isobar

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Solution

The correct option is E isotope
Anion and cation of same element has same number of protons and neutrons but different electrons.
Isotopes have same number of protons (atomic number) thus its the same element but different mass number (A), therefore the pair of isotope have different number of neutrons.
Isobars have same mass number (A), different number of protons (atomic number) thus they are different elements.
option D is correct

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Similar questions

Consider the following statements:

1. The number of protons in the nucleus of an atom of a given element is called the atomic number of that element.

2. Mass number of an atom is defined as the sum of number of protons and neutrons present in the nucleus of an atom.

3. Atoms of an element that have the same atomic number (Z) but different mass number (A) are called isotopes.

Which of the above statements is incorrectly stated?

Nuclei with same number of protons but different number of neutrons are called ___.

Nuclei with same number of neutrons but different atomic number are called ___.

Nuclei with same mass number are called ___.

Nuclei with the same number of protons but a different number of neutrons are called isobars

Nuclei with the same number of neutrons but a different atomic number are called isotopes

Nuclei with the same mass number are called isotones

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