Which of the following is best revealed by the bohr model?
a. electrons are found only within the nucleus of an atom.
b. protons orbit the nucleus of an atom in fixed proton shells.
c. neutrons orbit the nucleus of an atom in fixed neutron shells.
d. electrons orbit the nucleus of an atom in fixed electron shells.

Consider the two electron arrangements for neutral atoms a and b. are atoms a and b the same element? a - 1s2, 2s2, 2p6, 3s1 b - 1s2, 2s2, 2p6, 5s1

How have the greenhouse gasses increased from the year 2000 to 2018

Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. an industrial chemist studying this reaction fills a 25.0l tank with 4.5 mol of sulfur dioxide gas and 4.5 mol of oxygen gas at 30.°c. he then raises the temperature, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.4 mol. calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. round your answer to 2 significant digits.