What are valence electrons?
The outermost shell or energy level of an atom consists of valence electrons. An atom’s potential to make a bond with the atom of another element is defined as valency. It is mainly measuring the number of Hydrogen atoms an element can relocate or form a bond with. Thus, valance electrons depict the ideal bonding patterns for a component.
How many valence electrons does oxygen possess?
Oxygen has eight valence electrons which means that it comes under group 6 of the periodic table:
Hence, it has 2 electrons situated in the first shell, and it gets full as it has the maximum capacity of holding 2 electrons. Then the two other shells are located in the 2s subshell, and it also gets full as this shell has a maximum capacity of holding 2 electrons. The remaining 4 electrons go in the subshell 2p. But, this shell has a capacity of holding 6 electrons; thus, it has a possibility of adding 2 more to it.