If mass of neutron is doubled, mass of proton is halved and mass of electron is doubled,find out the `%` change of at wt.of `6C^(12)`

The ratio of the mass of the proton to the mass of the electron is

An atom contains electrons, protons and neutrons. If the mass of each neutrons is halved, and each electron is doubled, then the atomic mass of ._(12)Mg^(24)

In C^(12) atom if mass of e^(-) is doubled and mass of proton is halved, then calculate the percentage change in mass no. of C^(12)

An atom contains electrons,protons and neutrons.If the mass of each neutrons is halved, and each electron is doubled,then the atomic mass of Mg_(12)^(24) , approximately get reduced by

If the mass of a pendulum is doubled, the time period