Question

As a result of alpha particle scattering experiment, Rutherford concluded that:

• A. The center of the atom is empty
• B. Most part of the atom is empty
• C. The center of atom has negative charge
• D. Atomic mass is spread over the whole atom

Answer 1

The correct option is B

Most part of the atom is empty

According to Rutherford, the atoms are made of two parts: the nucleus and the extra-nuclear part. His experiments proved that the atom is largely empty and has a heavy positive-charged body at the center called the nucleus. The central nucleus is positively charged and the negatively-charged electrons revolve around the nucleus. Since the mass of protons is much larger than the mass of electrons, thus nearly all the mass of an atom resides at the center.