What’s the immune system? why is it so important?

Which statement about relative potential energy of electrons is correct? a. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 2 s orbital of the second electron shell. b. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 3 p orbital of the third electron shell. c. an electron in the 3 p orbital of the third electron shell has more potential energy than an electron in the 2 p orbital of the second electron shell.

Which of the following requires the use of energy and the of transport proteins to move a molecule across a cell membrane?

Which property is best to use when determining the strength of an ionic bond in a solid lattice energy conductivity hardness solubility