What is a proton ?

Find de-Broglie wavelength associated with a proton of energy 2 MeV. Given, mass of proton is 1.67 xx 10^(-27) kg .

Calculate the magnitude and direction of the electric field. Which keeps a proton just floating. Give that mass of proton 1.67 xx 10^-27 kg, charge on proton = 1.6 xx 10^-19 C and g = 9.8 ms^-2

An electron and a proton have equal momentum. Which has more kinetic energy and what is the ratio between the kinetic energy of electron and proton?

Where are protons present in an atom ?

An atom of element E contains 3 protons, 3 electrons and 4 neutrons : What could element E be

The nucleus of an atom has 5 protons and 6 neutrons. What would be the (b) mass number

The nucleus of an atom has 5 protons and 6 neutrons. What would be the (a) atomic number