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Answer 1 · 2017-06-14T15:47:53

$10$ $10$ Electrons Per Molecule of Water

One water molecule has a total of 10 protons and 10 electrons (8 from the oxygen atom and 1 from each of the two hydrogen atoms).

$H_{2} O$ $H_2O$

$↓$ $darr$

Hydrogen $(H_{2}) :$ $(H_2):$ atomic number $1,$ $1,$ but of $2$ $2$ atoms

$2 \times 1 = 2$ $2 xx 1 = 2$

Oxygen $(O) :$ $(O):$ atomic number $8,$ $8,$ but of $1$ $1$ atom

$1 \times 8 = 8$ $1 xx 8 = 8$

Electron $= 2 + 8 = 10$ $= 2 + 8 = 10$