Substances like hydrogen , which is a gas at room temperature and pressure, can often be liquified or solidified only at very low temperatures. At a pressure of , does not condense to a liquid until and does not freeze until . What are the equivalent absolute temperatures

electron microscopy and scanning tunneling microscopes gives us a greater understanding of atoms by being able to see the atom itself, and lets us see some atomic reactions.

explanation:

im not exactly sure but i think its b!

it is stable as it is in group 0 which have full outer shells of electrons