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प्रश्न
The isotopes of an element contain :
पर्याय
same number of neutrons but different number of protons
same number of neutrons but different number of electrons
different number of protons as well as different number of neutrons
different number of neutrons but same number of protons
उत्तर
different number of neutrons but same number of protons
Isotopes are the atoms of the same element with the same atomic number but different mass numbers. It means that they have the same number of protons and electrons but different number of neutrons.
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संबंधित प्रश्न
Explain the Isotopes with example.
Name the Radioactive Isotope Which is Used in the Treatment of Cancer.
Explain why, the atomic masses of many elements are in fractions and not whole numbers.
Which of the following pairs are isotopes ? Give reasons for your choice :
(i) `""_26^58"A"`, `""_28^58"B"` or (ii) `""_35^79"X"`, `""_35^80"Y"`
Name the atoms of a substance having same atomic number, but different mass numbers. Give one example of such a substance. How do the structures of such atoms differ?
Chlorine is an element of atomic number 17. It is a mixture of two isotopes having mass number of 35 and 37.
- What is meant by “atomic number of an element”? What do you understand by an ‘atom’
- Write down the electronic configuration of the chlorine atom.
- State the number of protons, electrons, and neutrons in the following isotopes: 35Cl17, 37Cl17
- Explain why the two atoms in (iii) above have the same chemical reactions.
- If molten magnesium chloride is electrolyzed suggest a suitable electrode [anode].
Ordinary chlorine gas has two isotopes: \[\ce{^35_17Cl}\] and \[\ce{^37_17Cl}\] in the ratio of 3 : 1. Calculate the relative atomic mass [atomic weight] of chlorine.
Name or state the following.
The three isotopes of hydrogen.
______ is a radioactive isotope present in our body.
In two isotopic species, a number of protons is the same but the number of ______ is different.
