A rectangular block of iron has dimensions 2cm x 0.5cm x 0.25cm and has a mass of 1.95g. The density of the iron block in SI system will be-
Answers
Answered by
0
Answer:
The reason why we only see ~118 elements is because we only see the ones stable enough to observe. Anything common in nature would need to have a half-life comparable to the age of the earth (or be produced as a decay product of something else that does).
Answered by
0
Answer:
sorry if don't know answer please mark me as brainlist
Similar questions