Chemistry, 02.04.2021 17:20 steven122048i
The element Harrium has 3 isotopes. 82% of the isotopes are Harrium -12 . 10% are
Harrium -13 and 8% are Harrium -14. What is the average atomic mass of Harrium ?
The element Abbium has 2 isotopes. 56% of the isotopes are Abbium -5. 44% are Abbium -6. What is the average atomic mass of Abbium ?
The element Martinium has 2 isotopes. 32% of the isotopes are Martinium -77. 68% are Martinium -75. What is the average atomic mass of Martinium?
The element Annium has 2 isotopes. 71% of the isotopes are Annium -56. 29% are Annium -59. What is the average atomic mass of Annium ?
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The element Harrium has 3 isotopes. 82% of the isotopes are Harrium -12 . 10% are
Harrium -13 and 8...
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