To draw the Bohr diagrams for oxygen (O) and molecular oxygen (O2), we first need to understand the electron configurations of the individual atoms and the molecule.
Bohr Diagram of Oxygen (O):
Oxygen has an atomic number of 8, which means it has 8 protons and, in a neutral atom, also has 8 electrons. The electron configuration is 1s2 2s2 2p4.
In a Bohr diagram, we would represent the nucleus with the 8 protons and include 8 electrons arranged in energy levels:
- First energy level (n=1): 2 electrons in the 1s subshell.
- Second energy level (n=2): 6 electrons (2 in the 2s subshell and 4 in the 2p subshell).
The Bohr diagram looks like this:
+---+
| 8 | (Nucleus: 8 protons)
+---+
|
----O---- (1s: 2e)
|
----O---- (2s: 2e)
| | | (2p: 4e)
O O O O
Bohr Diagram of Molecular Oxygen (O2):
Molecular oxygen consists of two oxygen atoms bonded together. In O2, there are a total of 16 electrons (8 electrons from each O atom).
The arrangement of electrons in the molecular Bohr diagram would be similar to two separate Bohr diagrams, but they must be shown together to indicate the bonding. Each oxygen atom in O2 will still look like the earlier diagram:
+---+ +---+
| 8 | | 8 | (Two Nuclei)
+---+ +---+
| |
----O---- ----O---- (1s: 2e, 2e)
| |
----O---- ----O---- (2s: 2e, 2e)
| | | | (2p: 4e, 4e)
O O O O
In summary, the Bohr diagram illustrates the organization of electrons in atomic and molecular structures, highlighting the shared and individual electron configurations.