What is the atomic number of an element whose atoms each contain 47 protons, 60 neutrons, and 47 electrons?

What diagram shows the ionic compound of magnesium oxide

For each of the following compounds, write the formula then predict whether it would be a strong, weak, or non-electrolyte when placed in di water. for the ionic compounds only, put (s) or (aq) after the forrmula formula strong, weak or non electrolyte? a calcium hydroxide b. silver carbonate c. lead(ii) sulfate d. phosphorus trifluoride e. sodium phosphide f barium sulfate g. strontium acetate h. zinc nitrate

Light waves travel than sound waves.