wat is an atom?

the smallest constituent of a molecule, which in turn, makes up matter.

An atom is made up of a nucleus which consists of protons and neutrons, and electrons orbiting the nucleus. The protons are positively charged, the neutrons neutral, and the electrons negative. The smallest atom is Hydrogen, which is just one proton, one neutron, and sometimes an electron, but not all the time (hence the + sign in H+. Without the electron, the overall charge is postitive because of the proton).

ATOM the smallest particle of matter ahich takes part in achemical reaction it can show all the basic properties of the element it belongs Atom has a central nucleus and electrons(-ve charge) orbiting around itself

Nucleus contains +ve protons and neutral neutons

The smallest known atom is hydrogen's it does not have a electron but the isotopes ie that atoms with same no.of protons and same no. of neutrons but different no. of electrons eg.

heavy hydrogen has 1 electon

and very heavy hydrogen has 2 electrons

An atom is a very small thing.Everything on earth is made up of atoms.Even the human body is made of millions and millions of atoms.An atom is very small and can not be seen by an unaided eye.Atoms are even smaller than germs and bacteria.

It's the smallest particle of an element that retains all properties of that element. It's made up of protons, neutrons, and electrons.

chem physics

any of the smallest particles of an element that combine with similar particles of other elements to form molecules

r u illiterate?