Why is the science method important for experiments?

Which element in the third period would you expect to have the larger atomic radius, sodium (na) or sulfur (s)? a. sodium, because it has a higher effective nuclear charge attracting electrons in fewer energy levels. b. sodium, because it has fewer protons attracting electrons in the same energy levels. c. sulfur, because it has more protons attracting electrons in more energy levels. d. sulfur, because it has a higher effective nuclear charge attracting electrons in the same energy levels.

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3