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Neptunium
element
| Question | Answer |
|---|---|
| who founded neptunium? | Edwin M. Mcmillan |
| what year was it founded? | 1940 |
| What is Neptunium's atomic number? | 93 |
| What is Neptunium's atomic mass? | 237 |
| Is this element a solid, liquid, or gas? | solid |
| Is it a metal or nonmetal? | metal |