What’s the symbol of the element that has 8 protons, 9 neutrons, and 8 electrons

Here’s one way to follow the scientific method. place the missing steps in the correct position in the process

Which statement describes james chadwick’s discovery.

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