How does calcium atomic radius compare to magnesiums radius and potassium's radius?

How many square kilometres for one hectare? Why does salt take longer to melt in cold water? 70 fl is equal to how many qt? How do electrons react in fireworks? What is the fastest thing that doesn' exist? What were hides and rods in the doomsdaybook they were to do with measuring? What percentage of stars are binary stars? What is the main route of entry of Legionella bacteria in the body? What is the stimulus and response pathway? How many elements have a rhombohedral crystal structure? How developed the first known system for classifying living things? What does the cytoplasm do for the cell? What is the absolute location of Belgium? What causes an increase in the kinetic energy of atoms within an element and an increase in the kinetic energy of molecules or ions within a compound? What is secondary erythrocytosis in a dog? What is the meaning of nutral? What is the name of the airport in Kenya? Which ore is tin extracted from? What stores much of the energy in the Earth's water cycle? How many ounces is in two shrimp?