An α particle is the nucleus of an 4He atom. (a) How many protons and neutrons are in an...

An α particle is the nucleus of an ⁴He atom. (a) How many protons and neutrons are in an α particle? (b) What force holds the protons and neutrons together in the α particle? (c) What is the charge on an a particle in units of electronic charge? (d) The charge-to-mass ratio of an a particle is Based on the charge on the particle, calculate its mass in grams and in amu. (e) By using the data in Table 2.1, compare your answer for part (d) with the sum of the masses of the individual sub-atomic particles. Can you explain the difference in mass? (If not, we will discuss such mass differences further in Chapter 21.)