#1: which element has the same number of valence electrons as hydrogen (h)? a. helium (he) b. oxygen (o) c. nitrogen (n) d. lithium (li) ***my d. lithium (li) is that right?

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

This flow chart shows the amount of energy that is emitted by each type of light. ultraviolet > blue light > yellow light > red light (maximum energy) (minimum energy) in an experiment, shining which type of light on a strip of metal would be least likely to produce the photoelectric effect? ultraviolet light dim blue light bright red light bright yellow light

May someone me with these science questions