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Nuclei having the same number of neutrons but a different mass number are called

Nuclei having the same number of neutrons but a different mass number are called Correct Answer Isotones

The correct answer is isotones.

CONCEPT:

  • The nuclei have been classified based on the number of protons (atomic number) or the total number of nucleons (mass number) as follows:
Isotopes Isobars Isotones

Isotherms 
The atoms of an element having the same atomic number but a different mass number are called isotopes. All isotopes have the same chemical properties. The nuclei which have the same mass number (A) but a different atomic number (Z) are called isobars. Isobars occupy different positions in the periodic table so all isobars have different chemical properties. The nuclei having an equal number of neutrons are called isotones. For them both the atomic number (Z) and mass number (A) are different, but the value of (A – Z) is the same.

Isotherms are lines on a weather map that connects points of equal temperature.

EXPLANATION:

  • From the above, it is clear that nuclei having the same number of neutrons but a different mass number are called isotones. Therefore option 3 is correct.

Related Questions

Which of the following statements is/are correct? 1. The atoms of an element having the same atomic number but a different mass number are called isotopes. 2. The nuclei which have the same mass number but a different atomic number are called isobars.
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Consider the following definitions: I. Isotopes: Having the same atomic number but a different mass number.  II. Isotones: Atoms of different elements having the same number of electrons.  III. Isobars: Same mass number but different atomic numbers  Which among the above is/are correctly matched?
The nuclei having same number of neutrons but different number of protons are called-
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Atoms having the same number of neutrons but different mass number are called
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Consider the following statements.
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Which of these statements are correct?