When electrons are shared between two atoms, they make a bond called a covalent bond. … These two atoms can do the same thing that the H atoms did; they share their unpaired electrons to make a covalent bond.
If atoms have similar electronegativities (the same affinity for electrons), covalent bonds are most likely to occur. Because both atoms have the same affinity for electrons and neither has a tendency to donate them, they share electrons in order to achieve octet configuration and become more stable.
What is electron sharing?
Electron ‘sharing’ occurs when the electrons in the outermost electron shell, or valence shell electrons, from one atom can be used to complete the outermost electron shell of another atom without being permanently transferred, as occurs in the formation of an ion.
Why are electrons shared in molecular compounds? Electrons are shared so that each element satisfies the octet rule. … Counting the groups of electrons that are shared pairs and lone pairs determine the electron geometry and bond angle forming its shape.
Why are electrons transferred in ionic bonds?
The atom losing one or more electrons becomes a cation—a positively charged ion. The atom gaining one or more electron becomes an anion—a negatively charged ion. When the transfer of electrons occurs, an electrostatic attraction between the two ions of opposite charge takes place and an ionic bond is formed.
What happens during electron sharing?
What is electron sharing? When atoms share one or more pairs of outer shell electrons with another atom. This creates a covalent bond between atoms.
What electrons are transferred?
In ionic bonding, electrons are completely transferred from one atom to another. In the process of either losing or gaining negatively charged electrons, the reacting atoms form ions. The oppositely charged ions are attracted to each other by electrostatic forces, which are the basis of the ionic bond.
Shared electrons located in the space between the two nuclei are called bonding electrons. The bonded pair is the “glue” that holds the atoms together in molecular units. The hydrogen molecule is the simplest substance having a covalent bond. It forms from two hydrogen atoms, each with one electron in a 1s orbital.
What is the transfer of electrons called?
The attraction between oppositely charged ions is called an ionic bond, and it is one of the main types of chemical bonds in chemistry. Ionic bonds are caused by electrons transferring from one atom to another. In electron transfer, the number of electrons lost must equal the number of electrons gained.