Which one of the following does NOT consist of approximately 1 mole of atoms? A)19 g of fluorine atoms
B)23 g of sodium
C)71 g of chlorine gas
D)6,022 X 10 atoms of helium​

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.

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

Quiz1. which physical state of nitrogen has the highest entropy? a solid© b gasoc liquid