How is compound formed

The VII A atoms create a strong attraction for the electron density of other atoms in order to achieve the stability of the Noble gas elements.

By sharing the electron densities atoms can achieve greater stability in combined electron configurations. The greater stability helps to "bind" the atoms together creating bonds. Also as the positive charged nucleus of each atom is attracted to the shared electron density the force of these attractions creates the bond that forms compounds.

How are compounds formed? David Drayer. May 23, Explanation: Atoms share their electron densities to achieve greater stability and are " joined" by the common attraction to the shared electron density. Noble gases are usually an exception as the stability of the their electron configuration precludes most bonding The electron configuration of these valance electrons creates conditions of varying stability.

There are different types of atoms, and they fit together in special ways to make up all of the matter in the world. All atoms are made up of even tinier particles called protons , neutrons , and electrons. The protons and neutrons huddle together in the nucleus , or center, of the atom, while the electrons spin around the nucleus.

Everything in the universe is made from elements. We know of 92 elements that occur in nature, but several more have been created by scientists for a total of An element is a pure substance that is made from one single type of atom.

For example, gold is an element that is made up of gold atoms. Oxygen is an element made up of oxygen atoms. The Periodic Table of Elements is used to organize the elements by their atomic number, or the number of protons in the nucleus. For example, oxygen has 8 protons, so its atomic number is 8.

Chemical symbols stand for each element. There is much more you can learn about atoms and elements from the periodic table. When two or more atoms join together, we call it a molecule. When two or more atoms of different elements join together, we call it a compound. All compounds are molecules, but not all molecules are compounds.

That is because a molecule can be made up of two atoms of the same kind, as when two oxygen atoms bind together to make an oxygen molecule. However, all compounds are made up of two or more different types of atoms. Elements are rarely found in their pure state; compounds are much more common.

There are just over different kinds of atoms, but there are millions of different kinds of substances made up of different types of molecules. Probably everything you see around you is some type of compound. When atoms of different kinds combine to form a compound, a new substance is created.

New compounds do not have the same physical or chemical traits of the original elements. They have a new life of their own. Compounds are written with formulas showing which elements from the periodic table are combined. One very familiar compound is water. When two hydrogen atoms H 2 combine with one oxygen atom O , it makes the compound H 2 O, which we know as water. All water molecules have this same combination of atoms. Water is not hydrogen or oxygen.

You couldn't pour oxygen and hydrogen atoms on a fire and expect to put it out. But when they are bonded together as water molecules, they behave like water. A compound is a brand new substance with its own properties. The same elements can build very different compounds. If you took those two hydrogen atoms and joined them to two oxygen atoms instead of one , you would wind up not with water but with H 2 O 2 , a very different compound called hydrogen peroxide - you wouldn't want to drink it!

How do these compounds form? Compounds are formed from simpler substances by chemical reaction. Some compounds can be formed directly from their constituent elements, e. Other compounds are formed by reaction of an element with another compound; e. Compounds are also made by reaction of other compounds; e.