How many Orbits does the element Radium (Ra) have?

According to the tide table below what time of day will the highest tide occur?

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:

Which of the following is described by the equation h2o(s)+ heat=h2o(i) a freezing melting condensing evaporating