Antiparticle of electron is
$_0{n^1}$
$_1{H^1}$
Positron
Neutrino
Explain by illustrating the types of atoms.
Assertion: Separation of isotope is possible because of the difference in electron numbers of isotope.
Reason: Isotope of an element can be separated by using a mass spectrometer
Which of the following is true for a sample of isotope containing ${U^{235}}$ and ${U^{238}}$
The mass of a neutron is the same as that of
Specify the mass of proton in kilogram and in the $'u'$ unit.