How do you say 133,000,000,000,000,000,000,000,000 ,000,000,000,000,000,000,000,000

What element breaks down into yttrium-90?

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

What does an electron configuration for an atom relate to the atoms placement on the periodic table