For which of the following elements is the number of neutrons correctly represented, based on the atomic number and mass number given? a. gold: atomic number 79, mass 197, neutrons 79
b. mercury: atomic number 80, mass 201, neutrons 180
c. seaborgium: atomic number 106, mass 266, neutrons 160
d. rutherfordium: atomic number 104, mass 261, neutrons 104

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

Gusing the milligrams of ascorbic acid you entered above, the ratio of total sample volume to aliquot volume, and the total milligrams of the vitamin c tablet that you dissolved, calculate the mass of ascorbic acid in the vitamin c tablet for each trial. do this by scaling up to find the amount (mg) of ascorbic acid in your 250 ml flask. enter your calculated mass of ascorbic acid in the vitamin c tablet, for each trial. be sure to enter your calculated mass in the corresponding order that you entered your milligrams of ascorbic acid. the milligrams of ascorbic acid you entered for entry #1 previously should correspond to the mass of ascorbic acid that you enter for entry #1 here.

Is 343 in the sequence -5, -2, 1, 4, 7