mikayleighb2019
08.07.2019 •
Chemistry
The atomic masses of the two stable isotopes of boron; boron-10 (natural abundance: 19.78%) and boron-11 (natural abundance: 80.22%) are 10.0129 amu and 11.0093 amu, respectively. calculate the average atomic mass of boron 10.41 amu 10.95 amu 10.81 amu 10.72 amu 10.13 amu
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Ответ:
10.41 amu is the answer the first one this is the two stable isotopes
Ответ:
no no no who are these some look good but are black what is this