Question

write with an example how co valent bond is formed according lewis concept​

Answer 1

Answer:

For example, an isolated hydrogen atom possesses only one electron, but two hydrogen atoms can share their electrons so that the resulting covalent bond gives each atom an inert gas electron configuration: ... The C and O in formaldehyde, CH2O, share 4 electrons. By forming a double bond, each atom achieves a Lewis octet.