David Sang Solutions for Chapter: The Nuclear Atom, Exercise 2: Questions

Which particles make up the nucleus of an atom? 

Which particles orbit around the nucleus?

A particular atom of oxygen is represented by ${}_8{}^{17}\mathrm{O}$. What is its nucleon number?

A particular atom of oxygen is represented by ${}_8{}^{17}\mathrm{O}$. What is its proton number? 

A particular atom of lead (symbol $\mathrm{Pb}$) contains $82$ protons and $128$ neutrons. Write down the full symbol for this atom.

How many protons, neutrons and electrons are there in a neutral silver atom, with the symbol ${}_{47}{}^{107}\mathrm{Ag}$? 

How many times greater is the mass of a proton than the mass of an electron?