What’s the equation for when Magnesium breaks down into carbon dioxide and magnesium?

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.

Which metal exist in liquid state and can be cut with knife ?

When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is m.