J. J. Thomson discovered that were filled with atoms that consist of negatively charged subatomic particles with a charge
of 1-. He conducted further experiments and developed the "
model, in which electrons were embedded in a positively
charged sphere.
O cathode rays, plum-pudding
O cathode rays, quantum
cathode rays, solar sytem
O anode rays, solar system

13) a 14) a15) b16) i don't know sorry17) a (maybe)

The answer to the question: choose the correct statement.  a) when ethane reacts with fluorine gas the product is less stable.b) addition reactions of unsaturated hydrocarbons and halogens requires a high activation energy.  c)the double covalent bond within unsaturated hydrocarbons requires a lot of energy to break.  d)the double covalent bond within unsaturated hydrocarbons can be broken easily.is: a) when ethane reacts with fluorine gas the product is less stable.