A xenon atom has a diameter of approximately 216 pm. If xenon atoms were placed into a straight line, how many would it take to span a distance of 1 inch?
How many moles of xenon atoms would that be? (1 pm = 1 x 10-12 m; 1 in =
0.0254 m)

A) 1.18 x 108 atoms/in
1.95 x 10-16 mol

B) 2.36 x 108 atoms/in
9.75 x 10-17 mol

C) 1.18 < 1010 atoms/in
1.95 x 10-14 mol

D) 2.36 1010 atoms/in
9.75 × 10-15 mol

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?