Lesson Worksheet: The Structure of the Atom Chemistry • 7th Grade

In this worksheet, we will practice describing interactions between protons and neutrons in the atomic nucleus and electrons in the surrounding shells.

Q1:

Which term is defined as the number of mutually orthogonal atomic orbitals possessing the same potential energy?

  • AOrbital degeneracy
  • BOrbital parity
  • COrbital angular momentum
  • DAzimuthal quantum number
  • EPrincipal quantum number

Q2:

Opposite charges attract each other via the electromagnetic force. Which of the following pairs of subatomic particles attract each other in this way?

  • AProtons and neutrons
  • BProtons and protons
  • CElectrons and neutrons
  • DElectrons and electrons
  • EProtons and electrons

Q3:

Like charges repel each other via the electromagnetic force. Which of the following pairs of subatomic particles repel each other in this way?

  • ANeutrons and electrons
  • BProtons and protons
  • CProtons and neutrons
  • DProtons and electrons
  • ENeutrons and neutrons

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