Advertisements
Advertisements
प्रश्न
Among the following the odd pair is
विकल्प
\[\ce{^18_8{O}}\], \[\ce{^19_9{F}}\]
\[\ce{^40_18{Ar}}\], \[\ce{^14_7{N}}\]
\[\ce{^30_14{Si}}\], \[\ce{^31_15{P}}\]
\[\ce{^40_20{Cr}}\], \[\ce{^39_19{K}}\]
उत्तर
\[\ce{^40_18{Ar}}\], \[\ce{^14_7{N}}\]
APPEARS IN
संबंधित प्रश्न
For the symbol H, D and T tabulate three sub-atomic particles found in each of them.
Complete the following statements :
Isotopes have different mass numbers because their nuclei contain different number of ............
Some boron atoms have mass number 10 and some have mass number 11. These boron atoms with different mass numbers are called .............
(a) What are isotopes ? Explain by giving an example.
(b) Give one similarity and one difference between a pair of isotopes.
(c) Give the number of protons, neutrons and electrons per atom in the two isotopes of chlorine `""_17^35"Cl"` and `""_17^35"Cl"`.
The radioactive isotope used in the treatment of cancer is :
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"`
State true or false. If false, correct the statement.
Isotopes of an element have different atomic numbers.
______ isotope is used in the nuclear reactors.
Define isotopes. Give example.
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.
