Where are atoms that tend to gain electrons located in the periodic table of the elements?
a. on the left side
b. on the right side
c. in the middle columns
d. starting on the fourth row

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.

In which of the following phases of matter do molecules have the highest amount of energy? a. liquid b. gel c. solid d. gas

What’s the physical properties in calcium chloride