Question

1. draw a bohrs model with three orbitals around the nucleus. add one electron to the first orbital and another to third orbital.

bohrs model

answer the following question based on your diagram of the bohrs model above:
how do the energy and the most probable location of an electron in the third shell of an atom compare to the energy and the most probable location of an electron in the first shell of the same atom?
a) in the third shell, an electron has more energy and is closer to the nucleus.
b) in the third shell, an electron has more energy and is farther from the nucleus.
c) in the third shell, an electron has less energy and is closer to the nucleus.
d) in the third shell, an electron has less energy and is farther from the nucleus.

Explanation:

Bohr's model defines electron shells (orbitals) as concentric energy levels around the nucleus. Shells farther from the nucleus have higher energy, as electrons need more energy to overcome the nucleus's electrostatic attraction and occupy these outer positions. The third shell is farther from the nucleus than the first shell, so an electron in the third shell has greater energy and is located farther from the nucleus.

Answer:

b) In the third shell, an electron has more energy and is farther from the nucleus.

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Bohr's Model Description (for the drawing requirement):

1. Draw a small, dense circle at the center labeled "Nucleus".
2. Draw three concentric circles around the nucleus:

• Innermost circle (1st orbital/shell): Mark 1 small dot (electron) on this circle.
• Middle circle (2nd orbital/shell): Leave this circle empty.
• Outermost circle (3rd orbital/shell): Mark 1 small dot (electron) on this circle.

1. Label the innermost circle "n=1", middle "n=2", outermost "n=3".