Which of the following electron configurations of outer sublevels is the most stable?

Type the letter that represents the correct location for each particle type below.

The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as

How does a sample of helium at 15 degree celsius compare to a sample of helium at 215 k? a) the helium at 15 degrees celsius has a higher average kinetic energy that the sample at 215 k. b) the helium at 15 degrees celsius has lower nuclear energy that the sample at 215 k. c) the helium at 15 degrees celsius has slower- moving atoms that the sample at 215 k. d) the helium at 15 degrees celsius has smaller atoms than the sample at 215 k.