<span>Protons and neutrons are both centrally located in an atom's nucleus, while negative electrons surround the nucleus in designated shells (which are commonly thought of as "orbits" as labeled in the PhET simulation).
Nucleus of an atom has positive charge, electrons are negative and atom has neutral net charge.</span>
Reactivity is a chemical
property of a substance. According to EPA regulations, it is normally unstable
and readily
undergoes violent change without
detonating. it can explode or violently react when exposed to water, when
heated, or under STP.
The substance present in the smallest amount in a solution is the solute; it is the substance that is dissolved. While the solvent is the substance present in the largest amount in a solution, it is the substance that does the dissolving. A solution is a homogeneous mixture formed when one substance dissolves in another.
Answer:
Decrease pressure: Decrease in both reactants, increase in both products
Decrease volume: Increase in both reactants, decrease in both products
Explanation:
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.
