Question

Half life of Radium(molar mass=226g/mol) is 1580 years. Show that 1g of Radium gives 3.70×10^10 disintegrations per second.​

Answer 1

Answer:

so 1580÷226

5 is the right answer

Answer 2

Answer:

An atmosphere is a layer or a set of layers of gases surrounding a planet or other material body, that is held in place by the gravity of that body. An atmosphere is more likely to be retained if the gravity it is subject to is high and the temperature of the atmosphere is low.