The sun is to solar energy as uranium is to energy

In the image, the arrow is pointing to a celestial object. which attribute disqualifies the object from being a planet?

According to social exchange theory, altruistic behaviors benefit the individual who performs them. t/f

Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j