Isotopes are atoms having
Same number of protons but different number of neutrons
Same number of neutrons but different number of protons
Same number of protons and neutrons
None of the above
Antiparticle of electron is
A nucleus disintegrates into two smaller parts, which have their velocities in the ratio $3: 2$. The ratio of their nuclear sizes will be $\left(\frac{x}{3}\right)^{\frac{1}{3}}$. The value of ' $x$ ' is :
The charge density in a nucleus varies with distance from the centre of the nucleus according to the curve in Fig.
In $_{88}R{a^{226}}$ nucleus, there are
Why do stable nuclei never have more protons than neutrons ?