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!

Organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

Bis the

Ais stronge