I suppose you mean "kinds of atoms". The answer depends on whether you mean "element" or "isotope". Two isotopes of the same element have the same number of protons, but a different number of neutrons. You may consider it a "sub-type".
Elements: More than 100.
Isotopes: More than 3000.
Atoms
BOOF!
Scientists have identified 118 elements, each made up of unique atoms with different numbers of protons in their nucleus. These elements combine in various ways to form all the matter in the universe.
To make a billion molecules of salt (NaCl), the scientist will need 6 billion atoms total. This is because each NaCl molecule is composed of one sodium atom and one chlorine atom, so for every molecule of salt, there are two atoms. Multiplying the number of molecules by 2 gives the total number of atoms needed.
research using the cathode ray
At least 112.
They are in the class of polygons known as triangles
Ernest Rutherford is the name of the scientist who discovered that atoms have positively charged nuclei.
no
A chemist.
british scientist discovered the nucleus
there are 20 im am a real scientist
a chemist
professor snell
Atoms
Dalton
a chemist