Covalent bonds are formed between two nonmetals

Last updated
Save as PDF

Page ID1979

There are two types of atomic bonds - ionic bonds and covalent bonds. They differ in their structure and properties. Covalent bonds consist of pairs of electrons shared by two atoms, and bind the atoms in a fixed orientation. Relatively high energies are required to break them (50 - 200 kcal/mol). Whether two atoms can form a covalent bond depends upon their electronegativity i.e. the power of an atom in a molecule to attract electrons to itself. If two atoms differ considerably in their electronegativity - as sodium and chloride do - then one of the atoms will lose its electron to the other atom. This results in a positively charged ion (cation) and negatively charged ion (anion). The bond between these two ions is called an ionic bond.

Índice Show

The correct option is Ctwo non-metals A covalent bond is formed between two non-metals. The sharing of electron pair takes place between their atoms and a covalent bond is formed. (adsbygoogle = window.adsbygoogle || []).push({});
What are covalent bonds formed between?
Why do 2 nonmetals form a covalent bond?

	Covalent Bonds	Ionic Bonds
State at room temperature:	Liquid or gaseous	Solid
Polarity:	Low	High
Formation:	A covalent bond is formed between two non-metals that have similar electronegativities. Neither atom is "strong" enough to attract electrons from the other. For stabilization, they share their electrons from outer molecular orbit with others	An ionic bond is formed between a metal and a non-metal. Non-metals(-ve ion) are "stronger" than the metal(+ve ion) and can get electrons very easily from the metal. These two opposite ions attract each other and form the ionic bond.
Shape:	Definite shape	No definite shape
Melting point:	low	High
What is it?:	Covalent bonding is a form of chemical bonding between two non metallic atoms which is characterized by the sharing of pairs of electrons between atoms and other covalent bonds.	Ionic bond, also known as electrovalent bond, is a type of bond formed from the electrostatic attraction between oppositely charged ions in a chemical compound. These kinds of bonds occur mainly between a metallic and a non metallic atom.
Boiling point:	Low	High
Examples:	Methane (CH4), Hydrochloric acid (HCl)	Sodium chloride (NaCl), Sulfuric Acid (H2SO4 )
Occurs between:	Two non-metals	One metal and one non-metal

Home

Covalent bond is formed between:

Question

metals

No worries! We‘ve got your back. Try BYJU‘S free classes today!

metal and non-metal

No worries! We‘ve got your back. Try BYJU‘S free classes today!

two non-metals

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

non-metal and an ion

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

Suggest Corrections

What are covalent bonds formed between?

A covalent bond consists of the mutual sharing of one or more pairs of electrons between two atoms. These electrons are simultaneously attracted by the two atomic nuclei. A covalent bond forms when the difference between the electronegativities of two atoms is too small for an electron transfer to occur to form ions.

Why do 2 nonmetals form a covalent bond?

Nonmetals will readily form covalent bonds with other nonmetals in order to obtain stability, and can form anywhere between one to three covalent bonds with other nonmetals depending on how many valence electrons they posses.