What is the quantum number set of the ground-state electron that is found in helium (he) but not in hydrogen (h)
(1, 0, 0, -1/2)
(1, 0, 1, -1/2)
(1, 1, 0, -1/2)
(1, 1, 1, -1/2)

Idon't know hope someone you

There is no reason to think the results are biased or not conducted properly but you should not assume the results are correct just because they were done in a laboratory so the answer would be c. it is likely to be reliable because the results support the conclusion presented.

For a collision to be successful you need 2 different objects