All the information is answered/given in the paragraph except that the study doesn’t show cells in their natural habitat!
To determine the relative atomic mass of thallium, we multiply the molar mass of the isotopes to their corresponding relative abundance. The molecular percentages should sum up to 1. In this case, we multiply 203 by 0.295 and 205 by 0.705 and add the answers of the two. The final atomic mass is 204.41 g/mol.
The elements helium neon and Exon are all part of the same _______ on the periodic table.
B. Group
They are non-renewable resources that formed when prehistoric plants and animals died and were gradually buried by layers of rock.
