D. Protons, Atomic number is the number of protons in an atom.
Answer:
potassium
The third alkali metal is K (potassium). The atomic number of K (potassium) is 19. Thus, the atomic number of third alkali metal is 19
Explanation:
Mineral because its not a rock
Answer:
mitochondria
Explanation:
Cellular respiration occurs primarily in the mitochondria of your cells. The mitochondria is like the powerhouse of cells .
B is correct. Molecules move faster when they are hotter because they have more energy. You can notice this change with your naked eye. Molecules in solids don't move. They have barely any energy. Hope this helps! ;)
