The Structure of the Atom Answers

Which element has 16 protons in its nucleus?

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?

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

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

A lithium atom has three protons, three neutrons, and three electrons. What is the overall charge on this atom?

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

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

What is the charge on an electron?

A nitride ion has 7 protons, 8 neutrons, and 10 electrons. What is the overall charge on this ion?

The table below gives some characteristics of element Y.Characteristics of element YValuesMass number11Number of neutrons in a single atom6Average atomic mass (grams/mole)10.81What is the identity of element Y?