difference between atom and molecule in tabular form

#Difference between atom and molecule in tabular form free

All compounds are molecules, but not all molecules are compounds.

A compound is a molecule made of atoms from different elements.Molecule is the general term used to describe any atoms that are connected by chemical bonds.Atoms of different elements join together in definite proportions to form molecules of compounds.Molecules of metals and some other elements, such as carbon, do not have a simple structure but consist of a very large and indefinite number of atoms bonded together.The number of atoms constituting a molecule is known as its atomicity.If 3 atoms of oxygen unite into a molecule, instead of the usual 2, we get ozone (O 3 ).a molecule of oxygen consists of two atoms of oxygen and hence it is known as a diatomic molecule. But this is not the case with most of the non-metals. are made up of only one atom of that element. Molecules of many elements, such as Argon (Ar), Helium (He) etc.The molecules of an element are constituted by the same type of atoms.Source | Credits | Picture Credits: NCERT General Science Molecules of Elements and Compounds Molecules of elements Law of constant proportions is also known as the law of definite proportions (in a chemical substance the elements are always present in definite proportions by mass).Thus, if 9 g of water is decomposed, 1 g of hydrogen and 8 g of oxygen are always obtained.In a compound such as water, the ratio of the mass of hydrogen to the mass of oxygen is always 1:8.Law of constant proportions: Many compounds are composed of two or more elements and each such compound has the same elements in the same proportions, irrespective of where the compound came from.

Law of conservation of mass: Law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction.Atoms of the same element (e.g., O 2) or of different elements (e.g., H 2O) can join together to form molecules.A molecule can be defined as the smallest particle of an element (e.g., O 2) or a compound (e.g., H 2O) that is capable of independent existence and shows all the properties of that substance.A molecule is a group of atoms that are chemically bonded together (held together by attractive forces).However, molecules are comparatively less reactive and do not participate in any chemical reaction. They can easily participate in any chemical reaction and do not decompose further into any subatomic particles. Atoms are always shaped spherical ad molecules that may either be angular or rectangular or linear in shape.Molecules, on the other hand, comprise of a minimum of two atoms that may either be identical or different and held together by a chemical bond. The nucleus, comprising of neutrons and protons, along with electrons together form an atom.On the other hand, molecules can be broken down into atoms of either similar or different elements. It is not possible to break down atoms any further.

#Difference between atom and molecule in tabular form free

However, molecules always exist independently or in a free state.

It is possible for atoms to either exist or not exist independently.

An atom is the smallest particle of any element, whereas, a molecule is formed when two or more atoms are held together with the help of a chemical bond.

Main Differences Between Atom and Molecule On the other hand, the neutrons have no charge at all. The protons in an atom give out positive charges and the electrons give out negative charges. In turn, this nucleus is comprised of a minimum of one proton and multiple neutrons.īoth the protons and the neutrons are collectively known as the nucleons and about 99.94% of the total mass of an atom is present in the nucleus. You will find a nucleus in every atom along with a minimum of one electron that will be bound with the nucleus.

To predict and explain the behavior of atoms, experts use quantum principles. The normal size of an atom is around 100 picometers, which is approximately 1 in a millionth part of a millimeter.ĭue to the extremely small size of atoms, it is not a simple task to predict their conduct with the help of classical physics. The air around you, anything liquid and solid are made up of either ionized or neutral atoms. When you talk about an atom, it refers to the smallest particle in any ordinary matter that forms a chemical element.