The nucleus is made of protons and neutrons. It has a positive charge.
Yuri Oganessian has already discovered the next noble gas at atomic weight 118, (which is 86 plus 32). The next most likely, if ever encountered, should be 150 (which is 118 plus 32) or at 168 (which is 118 plus 32 plus 16).
Answer:
How do you find the density of a liquid experiment?
To measure the density of a liquid you do the same thing you would for a solid. Mass the fluid, find its volume, and divide mass by volume. To mass the fluid, weigh it in a container, pour it out, weigh the empty container, and subtract the mass of the empty container from the full container.
