If you mean 'nucleus' it is the central part around which other parts are grouped. In physics, it is the positively chargesd mass within an atom
Neucleus was created in 1947.
a cell with a neucleus is called a Eukaryotic cell.
Prokaryotic- does not have a neucleus (bacteria) eukaryotic- has a neucleus (plantcell, animalcell, etc.)
protons
neucleus
The electron.
chromatin?
they are called prokariotic cells
Neucleus
no. of protons in its neucleus
It contains most of the atom's mass.
Neucleus, Proton and electrons