define octet rule . write its significance and limitations plz fast solve this question and follow me plz
Answers
Answer:
The octet rule states that atoms below atomic number 20 tend to combine so that they each have eight electrons in their valence shells, which gives them the same electronic configuration as a noble gas.
The octet rule states that an atom tends to have eight electrons in its outermost valence shell by forming covalent bonds through gaining or losing electrons from its outermost shell. ...
Explanation:
The significance of octet rule: The octet rule explains the formation of chemical bonds depending upon the nature of the element. Odd-electrons molecule: In molecules with an odd number of electrons such as nitric oxide (NO) and nitrogen dioxide (NO2), the octet rule is not satisfied for all the atoms.
One limitation of the octet rule is that it cannot be applied to the nonmetals after silicon in the Periodic Table. These elements can “expand their octet” and have more than eight valence electrons around the central atom.