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Isotopes, Isotones and Isobars

Why do isotop...

Question

Why do isotopes have different physical properties?

A

Isotopes of an element have different electronic configuration

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B

Isotopes of an element have different atomic number

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C

Isotopes have same atomic number.

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D

Isotopes of an element have different mass number.

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Solution

The correct option is D
Isotopes of an element have different mass number.

Isotopes of an element have different physical properties because they have different mass numbers.

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Similar questions

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. Isotopes of an element have the same atomic number but a 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. Assertion :Isotopes have different atomic numbers. Reason: Isotopes must have different numbers of electrons.

Q. ............... of an element are the atoms of same element having same atomic number but different mass number.

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Isotopes, Isotones and Isobars

Standard IX Chemistry

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