Physics
chelseamaire
20

The atomic number of sodium (Na) is 11. The element phosphorous (P) is the fourth element to the right of sodium in the periodic table. The atomic number of phosphorus is _____. It has zero charge because it has _____electrons. ? whats the answer please

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(1) Answers
hydro

Atomic number = 15 (11=4) no of electrons = no of protons (atomic number) no of electrons = 15

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