Atomic numbers of the isotopes of an element are different.

True

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False

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Solution

The correct option is B False
Isotopes are the atoms of an element that have same atomic number but different mass number.
Example: $H_{1}^{1}$ , $H_{1}^{2}$ , $H_{1}^{3}$ are the isotopes of Hydrogen(H).
Hence, the statement is false.

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Similar questions

Which of the following are characteristics of isotopes of an element?
(i) Isotopes of an element have the same atomic masses.
(ii) Isotopes of an element have the same atomic number.
(iii) Isotopes of an element show the same physical properties.
(iv) Isotopes of an element show the same chemical properties.

State whether the following statements are true or false.
Atomic numbers of the isotopes of an element are different.

Isotopes are the atoms of the same element; they have the same atomic number but different mass numbers. Isotopes have a different number of neutrons in their nucleus. If an element exists in two isotopes having atomic masses 'a' and 'b' in the ratio m: n, then average atomic mass will

\frac{m \times a + n \times b}{m + n}

Different isotopes of the same element have the same position in the periodic table. The elements which have single isotope are called monoisotopic elements. Greater is the percentage composition of an isotope, more will be its abundance in nature.

Answer the following questions:

The ratio of the mass of

^{12} C

atom to that of an atom of element= X (whose atomicity is four) is 1:9. The molecular mass element X is:

Q. Isotopes of an element have
(a) the same physical properties (b) different chemical properties
(c) different number of neutrons (d) different atomic numbers.

Q. Assertion :The mass spectrometer is used for determination of the atomic mass of isotopes.
Reason: Isotopes are the atoms of the same element having a same atomic number but different mass numbers.

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Atomic numbers of the isotopes of an element are different.

The correct option is B FalseIsotopes are the atoms of an element that have same atomic number but different mass number.Example:H11, H12,H13 are the isotopes of Hydrogen(H). Hence, the statement is false.

The correct option is B False
Isotopes are the atoms of an element that have same atomic number but different mass number.
Example: $H_{1}^{1}$ , $H_{1}^{2}$ , $H_{1}^{3}$ are the isotopes of Hydrogen(H).
Hence, the statement is false.