A central purple circle labeled N a has 3 concentric rings around it. The inner ring has 2 small green spheres. The middle ring has 8 small green spheres. The outer ring has 1 small green sphere.

Does this atom satisfy the octet rule? Why or why not?

1 answer

The octet rule states that atoms tend to form bonds in such a way that they have eight electrons in their valence shell, resembling the electron configuration of noble gases.

In the scenario you described, the central purple circle labeled "N" appears to represent a nitrogen atom, which typically has 5 electrons in its outer shell (the valence shell). Based on the configuration you've provided, we see:

  1. The inner ring has 2 small green spheres.
  2. The middle ring has 8 small green spheres.
  3. The outer ring has 1 small green sphere.

To analyze whether this atom satisfies the octet rule:

  • Inner ring: 2 electrons
  • Middle ring: 8 electrons
  • Outer ring: 1 electron

For nitrogen (N) with its 5 valence electrons, the distribution you provided suggests these potential electron configurations:

  • The nitrogen atom itself has 5 valence electrons, but typically would only utilize them in the outer ring for bonding.

In total, the electrons being shown in this scenario violate the organization expected in typical electron shell structure. If we're referring to the outermost shell typically holding 8 electrons to satisfy the octet rule, nitrogen (N) only has 5 electrons in reality in its outer shell.

Thus, this atom does not satisfy the octet rule because the outer shell is depicted with only 1 electron in the outer ring, failing to reach a complete octet of 8 electrons. Instead, nitrogen would require three more electrons to satisfy the rule, through covalent bonding or gaining electrons.

In conclusion, based on the octet rule criteria, this atom does not satisfy the octet rule because it does not have 8 electrons in its valence shell. A typical nitrogen atom can only form a stable configuration through bonds or electron sharing to achieve an octet.