Physics, 08.03.2021 21:10, lalaokawami0912
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?
A The 20 protons in each atom of calcium B The density of calcium, which is 1.54 g/cm3
C The atomic mass of calcium, which is 40.078 amu D The 2 valence electrons in each atom of calcium
Answers: 1
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A student is studying calcium, a highly reactive element that humans need for strong bones. Which ch...
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