Answer:
We are asked to describe the half-life of the radioactive materials.
- Hence the 3rd option is correct
The molar mass of Li->7g/mol
If 1mol of Li is 7g/mol
1.50mol of Li would be 10.5g/mol
Answer:
your answer would be : examples such as Thallium-206, Lead-210, & Bismuth-214.
Compare the density of the object in question to the density of water. If its density is less than water, it will float. For example, oak floats because its density is 0.7 g/cm³. If the density of an object is greater than water, it will sink.
