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प्रश्न
State true or false. If false, correct the statement.
Isotopes of an element have different atomic numbers.
पर्याय
True
False
उत्तर
False.
Correct Statement: Isotopes are atoms of the same element, which have same atomic number but different mass numbers.
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संबंधित प्रश्न
Give any two uses of isotopes.
Which radioactive isotope is used to determine the activity of thyroid gland?
What name is given to those isotopes which have unstable nuclei and emit various types of radiations ?
What is the reason for the slightly different physical properties of all the isotopes of an element ?
The isotopes of an element contain :
Three different atoms of oxygen are represented as :
`""_8^16"O"`, `""_8^17"O"`, `""_8^16"O"`
(i) What do the subscripts (lower figures) and superscripts (upper figures) represent ?
(ii) What factor is responsible for the change in the superscripts 16, 17 and 18, though the element is the same ?
(iii) What is the usual name for such atoms of an element ?
(iv) Give the nuclear composition of `""_8^16"O"`.
What are isotopes? With reference to which fundamental particle do isotopes differ? Give two uses of isotopes.
Explain radioactive decay and radioactive isotopes.
Distinguish isotopes from isobar
How is the radioactivity of a radio isotope affected if it undergoes a chemical change? Give a reason for your answer.
