The periodic table lists two main numbers for each element. the atomic number is an integer that equals the number of protons. the number of neutrons is not given in the periodic table because it will vary with different isotopes. the mass number of an element is the sum of the protons and neutrons. to find the number of neutrons, the atomic number must be subtracted from the mass number.

When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is m.

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation: