The Structure of the Atom Answers

The mass number of Fe2+ is 56. How many neutrons are there in a single Fe2+ atom?

An atom of element Be has four protons, four electrons, and five neutrons. Which element below could be an isotope of this atom?

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

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 element has 16 protons in its nucleus?

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

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?