5. How many grams of calcium carbonate (CaCO3) are needed to maker 1 liter of 2-molar solution? 029
O 100.19
O 50.19
O 200.2g

It is a body of knowledge gained  using  inquiry and experimentation 

13 protons and 14 neutrons.  this also means that the amount of electrons also is 13 because electrons have the same amount as protons..the atomic number means the amount of protons (which effectively tells you the electrons) the atomic mass, tells you the amount of protons and neutrons in the nucleus.hope this . 

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