Convert 2.6*10 to the negative 7 power

What does earth’s rotation on its axis cause? the tides night and day passing of years phases of the moon

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

How hot is the suns corona? (integrated science)