Lewis Structure Flashcards
Why do only C,N, O, F handle 8 electrons in valence shell and no more during COVALENT BONDING
Because they are so small that they cannot accommodate more than 8 electrons
Lithium (Covalent bonding)
Li, being a reactive metal, can only take part in ionic bonding.
Be (covalent bonding)
Be has two valence electrons, so upon bonding it is surrounded by four electrons
B (covalent bonding)
B has three valence electrons, so upon bonding it is surrounded by 6 electrons.
Deficient octet
having less than 8 electrons after bonding
Deficient octet- Coordinate bond
since their valence shells have capacity for 8 electrons, when they are brought in contact with an atom or molecule with one or more lone pairs, they form more bonds to complete the octet. This type of covalent bonding, where both shared electrons are both contributed by one of the two atoms is called coordinate covalent bond.
free radicals
molecular compounds that have 1 unpaired electron. They are highly reaction