The water would become polluted.
Answer: Thomson's showed that atoms contain smaller particles, so it was important to change the theory of daltons. Rutherford found that most of of an atom is hollow and in the middle of an atom is concentrated energy. This contributed to the revision of the plum pudding model.
Answer:
Explanation:
Protons have a positive charge, with a mass of 1 amu.
Neutrons have no charge, also with a mass of 1 amu.
Electrons have a negative charge, with a mass of 1 amu.
This is why when you're calculating the mass of an element or isotope, we only count the number of protons and neutrons.
<span>Four orbitals are needed to contain six electrons if two electrons are unpaired. According to Hund's rule, degenerate orbitals are filled evenly. Electrons minimize the force of repulsion by orbiting at a distance.</span>
