The atomic number of Helium (He) is 2, meaning it has 2 protons in its nucleus. The most abundant isotope of Helium is Helium-4 (^4He), which has a mass number of 4. The mass number is the sum of protons and neutrons. Therefore, for ^4He, Number of neutrons = Mass number - Number of protons = 4 - 2 = 2 neutrons.
Nucleus of helium contains:
Asked in RPSC RAS Prelims 1996 · Topic: Nuclear Physics (Basic properties of nuclei: size, shape, charge, mass, spin, magnetic dipole and electric quadrupole moments.)
More Physics questions
- The number of neutrons in Hydrogen nucleus is
- In the Rutherford experiment towards the discovery of atomic nucleus the target used was
- With reference to 'Isotopes', which of the following statements is/are correct? 1. Atoms with identical atomic numbers but different atomic mass numbers are known as isotopes. 2. Protium, Deuterium and Tritium are isotopes of carbon. Select the correct answer from the code given below : Code :
- Which of the following pairs represents isobars ?
- Where are electrons located in an atom?
- Select the pairs of isobars from the following nuclei : $^{12}_{6}\text{Na}^{23}$, $^{12} _{6}\text{Mg}^{24}$, $^{11}_{5}\text{Na}^{24}$ - $^{12}_{6}\text{Mg}^{24}$, $^{11} _{5}\text{Na}^{24}$ - $^{12}_{6}\text{Na} ^{23}$, $^{12}_{6}\text{Mg}^{24}$ - $^{12} _{6}\text{Na}^{23}$, $^{11}_{5}\text{Na}^{24}$
- Select the pairs of isobars from the following nuclei : $$_{12}Na^{23}, _{12}Mg^{24}, _{11} Na^{24}$$
- Select the pairs of isobars from the following nuclei : ${ }_{12}^{25} \mathrm{Na},{ }_{12} ^{24} \mathrm{Mg},{ }_{11}^{24} \mathrm{Na} $ - ${ }_{12} \mathrm{Mg}^{24},{ }_{11} \mathrm{Na}^{24}$ - ${ }_{12} \mathrm{Na}^{23},{ } _{12} \mathrm{Mg}^{24}$ - ${ }_{12} \mathrm{Na}^{23},{ }_{11} \mathrm{Na}^{24}$