Surround the nucleus in shells or clouds.
a. protons
b. photons
c. neutrons
d. electrons

An aqueous solution of calcium hydroxide is standardized by titration with a 0.120 m solution of hydrobromic acid. if 16.5 ml of base are required to neutralize 27.5 ml of the acid, what is the molarity of the calcium hydroxide solution?

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

Agas occupies 475 cm^3 at 313k. find its volume at 367k. you must show all of your work to receive credit. be sure to identify which of the gas laws you will be using