Science, asked by gurinder35, 1 year ago

difference between atom element and molecule complete difference​

Answers

Answered by Anonymous
2

Atom is the smallest indivisible part of matter which retains its identity ( this last part is added because, though atoms can be divided into Protons, neutrons and electrons; thoae particles have no identity e.i, there's no difference between a oxygen electron and a hydrogen electron). Actually an atom gives any element it's identity.

An element is a pure substance which is made up of only one kind of atoms. These atoms might be bonded into molecules as in the case of oxygen but they will always be the same kind of atoms: never will you find an atom of any other kind.

A molecule now, is a formed when two or more atoms combine. If the same kind of atoms combine, the substance they form will be called an element ( remember, same type of atoms). Now comes the catch. If two different types of atoms combine to form a molecule, the pure substance formed by these molecules will be called a compound. This bit is very important.

I repeat, a compound is a pure substance formed by the molecules composed of different types of atoms ( say hydrogen and oxygen atoms combine to form a water molecule and many millions of water molecules will form the compound water in any given quantity, say a litre)

And an element is a pure substance composed either of atoms of one kind ( take iron for example, several million iron atoms are found in one kg of iron *but none of them are in combination with each other, so they aren't molecules*) or molecules made up of the same atoms ( take oxygen, the simplest example. The gas is made up of oxygen molecules {O2} and in this case the each atom of oxygen is in combination with another one. )

Hope this helps. And please, if you're still confused, please consult someone more experienced ( I'm only in the 9th grade) because if you get these concepts wrong, all your chemistry is ruined for life! Good luck!

Answered by PUSHPIT2004
1

atom is the smallest particle taking part in chemical reaction

element is the pure substance combining of one type of atoms

molecule is a compound of 2 or more elements

atom -eg= an oxygen  atom

                  an hydrogen atom

element =eg=h2,o2,etc..

molecule =eg=h20,ch4,etc...      

Similar questions