David Sang Solutions for Chapter: The Nuclear Atom, Exercise 4: End-of-chapter questions

The diagram represents a neutral lithium atom. All the particles in the atom are shown on the diagram. Use the diagram to help you answer the following question. What is the value of the proton number of this atom?

The diagram represents a neutral lithium atom. All the particles in the atom are shown on the diagram. Use the diagram to help you answer the following question. How many neutrons does the atom have? 

The diagram represents a neutral lithium atom. All the particles in the atom are shown on the diagram. Use the diagram to help you answer the following question. What is the value of the nucleon number of this atom?

Copy the diagram below, replacing the boxes with appropriate numbers, to represent this atom of lithium in nuclide notation.
.

The charges on the particles in an atom may be represented by  $0$    or   $+1$   or    $+1$,
The masses of the particles in an atom may be represented by  $0$   or   $\mathrm{m}$    or     $2000 \mathrm{m}$.
Using these choices, copy and complete the table.

How many of these particles are there in a neutral atom of ${}_{92}{}^{238}\mathrm{U}$
Electrons.

How many of these particles are there in a neutral atom of  ${}_{92}{}^{238}\mathrm{U}$.
neutrons

How many of these particles are there in an neutral atom of  ${}_{92}{}^{238}\mathrm{U}$
protons