The periodic table is based on an element's

a. atomic number.

b. atomic mass.

c. molecular size.

d. molecular mass.

Explain the basic principles involved in X-ray crystallography. Include Bragg's law in your explanation.

Carbon has two naturally occurring isotopes: C-12 (natural abundance is 98.93%) and C-13 (natural abundance is 1.07%). How many C-13 atoms are present, on average, in a 30000-atom sample of carbon?

Which is not the purpose of using a paper towel to dab off your metal? Remove the outer layer of sodium oxide that formed to allow for a quicker reactionRemove the kerosene or oil used as a storage medium to allow for a quicker reactionRemove the

The long hydrocarbon molecules that make up olive oil only possess weak London dispersion forces between them, yet olive oil is a viscous liquid. How is this possible? London dispersion forces are strong when molecules contain only C and H atoms.

What are two different ways to tell time

At a certain temperature the rate of this reaction is second order in NH4OH with a rate constant of 34.1 M^-1s^-1: Suppose a vessel contains NH4OH at a concentration of 0.100M.

If you go into the lab and dissolve 2.11 g of magnesium chloride in enough water to make 1500 ml of solution, what is the molarity of the resulting solution?

Which one of the following Acids is most likely to hurt you? Acid A: 1.0 M; Acid B: 0.0001M

Which statement accurately describes the atoms of a specific element? explain your answer in complete sentences. A. A Neon, Ne, atom contains 10 electrons outside the nucleus and 11 neutrons inside the nucleus. OR B.

What is the volume of 2.00 moles of chlorine (cl2) gas at stp, to the nearest tenth of a liter?