| 11. | Atomic Number : 107 Atomic Weight : [ 270 ] Melting Point :?
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| 12. | Atomic Number : 110 Atomic Weight : [ 281 ] Melting Point :?
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| 13. | What is the meaning of the numeral in parentheses following an atomic weight?
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| 14. | Atomic Number : 106 Atomic Weight : [ 269 ] Melting Point :?
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| 15. | His research also included calculations of the atomic weight of platinum.
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| 16. | Lead ( Pb ) is atomic number 82, atomic weight 207.
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| 17. | Atomic Number : 118 Atomic Weight : [ 294 ] Melting Point :?
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| 18. | Atomic Number : 116 Atomic Weight : [ 293 ] Melting Point :?
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| 19. | Atomic Number : 112 Atomic Weight : [ 285 ] Melting Point :?
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| 20. | Her research focus was on aromatic acids and the atomic weight of palladium.
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