The mass of an atom is contained primarily in its NUCLEUS.
An atom is made up of three sub particles, which are proton, neutrons and electrons. The proton and the neutrons are located in the nucleus of the atom while the electron are located outside the nucleus where they move about in continuous motion around the nucleus. The proton and the neutrons, which are located in the nucleus have the same relative mass of 1, which has been estimated to be about 2,000 times bigger than that of the electron, which has a relative mass of 0.0005. This shows that, the mass of an atom is located primarily in its nucleus. <span />
Answer:
The suns average density is greater than water's.
Density (avg) of the sun: 1.4 g/cm
Density of H20: 1.0 g/cm
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found that animals are composed of cells is Theodor Schwann
found that plants are composed of cells is Matthias Schleiden
looked at cork through a compound microscope is Robert Hooke
declared that all living cells can only come from other living cells called living cells "animalcules" is Rudolph Virchow
