The answer is 81 protons.
This formula is Ca(H2PO4)2. Since a dihydrogen phosphate anion has only one negative electric charge and a calcium cation has a positive charge of two, twice as many of the anions are required.
The ratio pf molecular weights is 124/106 mono/anh. Most uses of sodium carbonate need not be accurate to closer than 1% and many need not be closer than 10%. Anhydrous carbonate tends to become monohydrated by taking moisture from the atmosphere.
Americium has 95 protons.
Barium has 56 protons.
17 protons and 18 electrons
6
10
Atomic number of it is 16. It has 16 protons in a atom.
An atom of platinum (Pt) has 78 protons.
78 protons, 78 electrons and 119 neutrons
11
Dihydrogen monoxide is one of the many scientifically descriptive names for H2O, or water. Di- means two, hence two Hydrogen (H2) Mono- means one, so one Oxygen (O) Water has many effects because it is found almost everywhere.