Understanding Chemical Bonds: What Are Ionic, Covalent, Molecule, and Compound Bonds

In the field of biology, one thing that can be difficult to understand are chemical bonds. These bonds play a very important role in all fields of science, including chemistry and biology. These bonds can either be molecular or compound. If the bond is molecule then it means that it is a group of atoms that are bonded together. It is a compound bond, then it means that it is a molecule that contains atoms of more than one element. There two types of these bonds, ionic and covalent. An ionic bond means that it gives up or accepts electrons. If it is a covalent bond, then it shares electrons. Additionally, chemical reactions can occur amongst different atoms and molecules.

Ionic bonds are formed when two atoms are held together by the attraction of opposite charges. For example, sodium has only one electron in its valence shell, so it usually gives up electron. In contrast, chlorine has seven electrons in its valence shell, and in turn, it usually accepts electrons from another atom.

A covalent bond is formed when two atoms share their electrons. For example, two hydrogen atoms can share electrons to fill up the shell, which in turn, makes their orbitals overlap. Scientists can show this bond in two ways: either by using the structural formula for the molecular formula. The structural formula uses straight lines, similar to a dash, to indicate shared electrons. The molecular formula, on the other hand, shows the number of atoms that are involved using a subscript. In addition to a singular covalent bond, there are also double covalent bonds, which as their name suggests, involves sharing two pairs of electrons. Furthermore, there can be triple covalent bonds, which share three pairs of electrons. A single atom can form bonds with more than one other atom. This can be represented in two different ways, either by the ball and stick model or the space filling model.

All of these different atoms can form chemical reactions. A reactant is molecules that participate in the reaction process. The product is what is formed by these reactions. These reactions can either be balanced or unbalanced depending on what reaction occurs. It is balanced if the same number of each type of atom occurs on both sides of the equation. This can be a difficult concept to understand, but is a very important concept in learning to balance equations is a vital part of chemistry.