Answer:
3,4
Explanation:
Hydrogen has no other electron hence there is no screening of the valence electron by inner electrons. It is the lightest known element with a relative molecular mass of 2. Screening effect refers to the fact that inner or core electrons prevent the outermost electron from feeling the attractive force of the nucleus.
Use M x V = M' x V'
0.300 x V = 0.100 x 250
V = .......... ml
Answer:
False.
Explanation:
I am not completely sure, but I don't believe the earth is getting larger.
