The smallest halogen atom is fluorine
Answer:
allows the atoms of different elements to bond together to form new substances
Answer:
Mercury
Explanation:
Mercury is a liquid element that contains 80 electrons when not charged.
Rutherford, Geiger and Marsden's experiment proved that every atom has a nucleus and that this nucleus is of positive charge and contains the most of the mass of the atom. 0.005% of the volume occupied by the electrons is the volume of the nucleus.
