EVERYDAY SCIENCE

SCIENCE

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following describes covalent bonds?
A
Bonds form because of opposite charges
B
Bonds form to fill outer electron shells
C
Electrons are transferred between atoms
D
Covalent bonds are magical
Explanation: 

Detailed explanation-1: -Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell. By sharing their outer most (valence) electrons, atoms can fill up their outer electron shell and gain stability.

Detailed explanation-2: -When two atoms share electrons to fill their outer shells, it is called a covalent bond. A covalent bond is when atoms share one or more electrons. Covalent bonds form because the energy exerted to stay together is much less than the energy needed to break them apart and form isolated atoms.

Detailed explanation-3: -The correct answer is: Electrons are shared to fill outer electron shells.

Detailed explanation-4: -When two atoms share their valence electrons between each other a covalent bond is formed.

Detailed explanation-5: -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.

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