It's Cesium.....
The nucleus of an atom represents most of an atom's mass.
Most of the volume of an atom is vacuum.
Most of the volume of an atom is vacuum.
in the nucleus of the atom
The most space of an atom is vacuum.
Most of the volume in an atom is occupied by the electron cloud. Most of the complex reactions of the atom occur in the cloud.
It is positively charged and includes most of the atom and mass.
The most stable atom in the periodic table is helium.
in the nucleus of the atom
the nucleus of an atom
Every atom is useful.Example is oxygen.
protons and neutrons make up most of the mass in an atom