Practice Test | Kullabs.com
0%
  • The atomic number of boron is ______.

    3
    2
    5
    4
  • The energy of the shell ______ as we move away from the nucleus.

    does not change
    decreases
    cannot be predicted because it depends of individual atom
    increases
  • The number of electrons that can be accommodated in the third shell is ______.

    18
    8
    2
    16
  • The process of distribution of electrons in the various shell of the atom is called _______.

    electronic configuration
    electron assimilation
    valency
    electron distribution
  • Which one of the following is correct?

    Number of neutrons = Mass number + Atomic number
    Number of protons = Mass number - Atomic number
    Number of electrons = Mass number - Atomic number
    Number of neutrons = Mass number - Atomic number
  • You scored /5


    Take test again