Chemistry, 31.08.2021 06:00 alexwlodko
4. Thallium-203 has a mass of 202.9723 g and 29.523% abundance, Thallium-205 in nature is found to have
70.476% abundance. If the average atomic mass of Thallium is 204.38 g, how many grams does Thallium
205 have ? round to seven significant numbers.
HELP PLEASE!
Answers: 3
Chemistry, 22.06.2019 14:30, Kiaraboyd9366
Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.
Answers: 1
Chemistry, 22.06.2019 15:30, lizzyhearts
Count the number of each type of atom in the equation below, and then balance the equation. write in the numbers of atoms and coefficients. add a 1 if there should be no coefficient. cs2(l) + o2(g) → co2(g) + so2(g) c [ ] s [ ] o > c [ ] s [ ] o [ ] cs2(l) + [ ] o2(g) > [ ] co2(g) + [ ] so2(g)
Answers: 3
4. Thallium-203 has a mass of 202.9723 g and 29.523% abundance, Thallium-205 in nature is found to h...
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