1. How would the volume and characteristics of urine change for each of the following people (4 marks)
a. A person who had been consuming alcohol for several hours
b. A person who had consumed a litre of water after moderate exercise

the atomic number of magnesium is 12. its nucleus must contain 12 protons and no electrons. the atomic number of an atom is determined by the number of protons.

magnesium is an electrolyte injection commonly used to treat low magnesium levels in your blood. it is also used to prevent or control seizures in women with preeclampsia or eclampsia.