what is covalent bond? and give some examples
Answers
Answer:
Covalent bonds are characterized by the sharing of electrons between two or more atoms. These bonds mostly occur between nonmetals or between two of the same (or similar) elements. Examples of compounds that contain only covalent bonds are methane (CH4), carbon monoxide (CO), and iodine monobromide (IBr).
Explanation:
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Answer:
A covalent bond is a chemical bond in which pairs of electrons are shared between two atoms. The covalent bond is also called a molecular bond. The forces of attraction or repulsion between two atoms, when they share electron pair or bonding pair, is called as Covalent Bonding. Carbon, having four electrons in its outer shell has given it the ability to form innumerable molecules and bonds. This is why carbon has so many elements and allotropes. Confused as to why? It is because a carbon atom is in the most favourable situation to form a covalent bond.
Covalent Bond Examples
Let us learn about covalent bonding through examples given below
Covalent Bonding of Hydrogen Molecule
The simplest way to learn about the covalent bond is the example of a hydrogen molecule. Are you aware that hydrogen that is present in our atmosphere cannot exist in its original form? It has to bond with another atom, for it to be stable enough. This is why the molecular formula of hydrogen is always H2.
A single atom of Hydrogen has one electron, i.e. its atomic number 1. It has its only electron in its first and only orbit. Now to be a stable molecule it needs to complete its duplet state. So a single hydrogen atom will remain unstable until it attains one more electron. So we can say the valency of hydrogen is 1. The valency of an atom depends on its sharing capacity. So the hydrogen atom shares its single atom with another hydrogen atom. Now both hydrogen atoms have two (shared) electrons in its outer shell and it is a stable molecule H2. This bond formed by sharing electrons is nothing but a covalent bond.
Explanation:
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