The mass numbers for two isotopes are unequal because they have different numbers of NEUTRONS.
Answer:
According to the scientists, evidence of an underground ocean suggests that Enceladus is one of the most likely places in the solar system to "host microbial life". Emissions of water vapor have been detected from several regions of the dwarf planet Ceres.
Explanation:
So potassium is more reactive than lithium because the outer electron of a potassium atom is further from its nucleus than the outer electron of a lithium atom. Hope this answers the question. Have a nice day. Feel free to ask more questions.
Answer:
I think the answer is 729 cubic millimeters.
I think it would be 2,510 kJ, or 2,510,000 J.
