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Which best explains why ionization energy tends to decrease from the top to the bottom of a group? The number of orbitals decreases. The number of neutrons decreases. Electrons get closer to the nucleus. Electrons get farther from the nucleus.

Answer :

maacastrobr

Answer:

Electrons get farther from the nucleus.

Explanation:

By going from the top to the bottom of a group, the atomic number increases. That would mean that:

  • The number of orbitals increases, as there are more electrons.
  • A higher atomic number implies an increasing number of neutrons.
  • As there are more electrons, they get farther from the nucleus. The farther an electron is from the nucleus, the easier it is for the electron to be removed from the atom.
pstnonsonjoku

Ionization energy decreases down the group because electrons get farther from the nucleus hence they are easier to remove.

Ionization energy refers to the energy required to remove an electron from  an atom. The ionization energy is a periodic trend that decreases down the group but increases across the period.

The ionization energy decreases down the group because electrons get farther from the nucleus hence they are easier to remove.

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