The Structure of the Atom Answers

In which of these statements are protons, electrons, and neutrons correctly compared?

An atom contains one proton, one electron, and one neutron. Which two particles are most similar in mass?

Which statement describes an electron?

A scientist uses an accelerator and high energy electrons to study the particles inside the protons of a helium atom. What particles is the scientist studying?

Carbon-12 and carbon-13 are isotopes of carbon. Which of the following statements is correct?

The table below gives the atomic mass and relative abundance values for the three isotopes of element M.Relative abundance (%)Atomic mass (amu)78.9923.985010.0024.985811.0125.9826What is the average atomic mass (in amu) of element M?

Which two particles are found in the nucleus of an atom?

Boron occurs naturally as two isotopes. What is the difference between these isotopes?

A particle that travels around the nucleus of an atom in orbitals is called a(n)

The diagram below shows some subatomic particles.What is the particle that is labeled with a question mark (?) in the diagram?