What is octet rule explain with an example?

What is octet rule explain with an example?

In chemistry, the octet rule explains how atoms of different elements combine to form molecules. In a chemical formula, the octet rule strongly governs the number of atoms for each element in a molecule; for example, calcium fluoride is CaF2 because two fluorine atoms and one calcium satisfy the rule.

What is the octet rule and why is it important to chemical bonding?

The octet rule is important in covalent bonding because sharing electrons gives both atoms a full valence shell. All atoms strive to achieve a full valence shell, just like the noble gases. This is the most stable electron arrangement.

What is octet rule Organic Chem?

Illustrated Glossary of Organic Chemistry – Octet rule. Octet rule: The concept that compounds containing carbon, nitrogen, oxygen, and fluorine are more stable if these atoms have eight valence electrons. When one of these atoms has less than eight valence electrons it has an open octet.

What is octet rule for class 11?

The Octet rule states that main group elements try to bond with other atoms or species in such a way that all of them will possess stable electronic configuration. In other words we can also say that eight electrons in the outermost shell or valence shell of each atom.

What is octet Class 10?

The octet rule dictates that atoms are most stable when their valence shells are filled with eight electrons. The octet rule is only applicable to the main group elements. The molecules of the halogens, oxygen, nitrogen, and carbon are known to obey the octet rule.

What is octet rule in chemical in chemical bonding?

The octet rule is a chemical rule of thumb that reflects the theory that main-group elements tend to bond in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble gas.

Why is the octet rule?

The octet rule exists because the atoms of many elements become more stable by attaining a noble gas electron configuration. Most noble gases have eight valence electrons (He has only 2) which gives them a full outer shell of electrons in the s and p sublevels of their highest energy level.

What is octet in chemistry?

octet, in chemistry, the eight-electron arrangement in the outer electron shell of the noble-gas atoms. This structure is held responsible for the relative inertness of the noble gases and the chemical behaviour of certain other elements.

What is the octet rule for Lewis structures?

Octet rule states that in forming compounds, atoms gain, lose or share electrons to give a stable electron configuration characterized by eight valence electrons. This rule is applied to the main-group elements of the second period.

How can you use the octet rule to determine if an element wants to gain or lose valence electrons?

Explanation: Without going into a (lengthy) explanation of the reasons behind it, the octet rule tells us that there is a strong tendency for atoms to gain or lose electrons until the number of electrons in the outer shell of the atom becomes eight.

What does the octet rule mean in chemistry?

The octet rule states that elements gain or lose electrons to attain an electron configuration of the nearest noble gas.

Which is an example of the duet rule instead of the octet rule?

Since the first shell can only accommodate two electrons, elements such as lithium, helium, and hydrogen obey the duet rule instead of the octet rule. For example, lithium can lose an electron to have a stable configuration in which the valence shell holds two electrons.

Why does lithium not obey the octet rule?

For example, lithium can lose an electron to have a stable configuration in which the valence shell holds two electrons. Due to the presence of a d-orbital, the transition elements do not obey the octet rule.

Why do atoms want to achieve an octet of electrons?

Atoms follow the octet rule because they always seek the most stable electron configuration. Following the octet rule results in completely filled s- and p- orbitals in an atom’s outermost energy level. Low atomic weight elements (the first 20 elements) are most likely to adhere to the octet rule.