A student is studying calcium, a highly reactive element that humans need for strong bones. Which characteristic of calcium is most closely related to its chemical reactivity?
Essential nutrients
These are the organic compounds present in the food that provide nourishment essential for the development and growth of our body. Nutrients not only provide us with the required energy to carry out various biological processes but are also the building blocks for repair and growth in our bodies.
Vitamins
The vitamins are organic molecules required in low concentration for the proper functioning of the body. They cannot be generated in the organism and are taken into the body through the diet. The lack of proper vitamins results in diverse deficiency disorders. They are thus called essential nutrients. The important vitamins are vitamin A, vitamin B complex, vitamin C, vitamin D, vitamin K, and vitamin E.
 alt="5. A student is studying calcium, a highly reactive element that humans need for
strong bones. Which characteristic of calcium is most closely related to its
chemical reactivity?
The 20 protons in each atom of calcium
The density of calcium, which is 1.54 g/cm
The atomic mass of calcium, which is 40.078 amu
The 2 valence electrons in each atom of calcium
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