Because the reduced mass of muonium, and hence its Bohr radius, is very close to that of hydrogen, this short-lived " atom " ( or a muon and electron ) behaves chemically to a first approximation like the isotopes of hydrogen ( protium, deuterium and tritium ).
32.
Depleted water ( 125 ppm deuterium corresponds to the deuterium : protium ratio D : H = 1 : 7695 ) at a consumption as high as 2 litres per day can influence the deuterium concentration in human body ( average 40 litres with deuterium : protium ratio about D : H = 1 : 6418 ) for less than 1 % ( decreasing the normal ratio to D : H = 1 : 6472 ).
33.
Depleted water ( 125 ppm deuterium corresponds to the deuterium : protium ratio D : H = 1 : 7695 ) at a consumption as high as 2 litres per day can influence the deuterium concentration in human body ( average 40 litres with deuterium : protium ratio about D : H = 1 : 6418 ) for less than 1 % ( decreasing the normal ratio to D : H = 1 : 6472 ).
34.
Protium hydroxide implies 1 H-O-H, i . e . one of the hydrogen atoms is definitely protium ( no neutrons in its nucleus ) but the other hydrogen atom may be any one of protium ( 1 H or just H ), deuterium ( 2 H or D ), or tritium ( 3 H or T ), that is to say, the other hydrogen may or may not have neutrons in its nucleus.
35.
Protium hydroxide implies 1 H-O-H, i . e . one of the hydrogen atoms is definitely protium ( no neutrons in its nucleus ) but the other hydrogen atom may be any one of protium ( 1 H or just H ), deuterium ( 2 H or D ), or tritium ( 3 H or T ), that is to say, the other hydrogen may or may not have neutrons in its nucleus.
36.
Protium hydroxide implies 1 H-O-H, i . e . one of the hydrogen atoms is definitely protium ( no neutrons in its nucleus ) but the other hydrogen atom may be any one of protium ( 1 H or just H ), deuterium ( 2 H or D ), or tritium ( 3 H or T ), that is to say, the other hydrogen may or may not have neutrons in its nucleus.
37.
An example is water, where some of its hydrogen-related isotopologues are : " light water " ( HOH or H 2 O ), " semi-heavy water " with the deuterium isotope in equal proportion to protium ( HDO or 1 H 2 HO ), " heavy water " with two deuterium isotopes of hydrogen per molecule ( D 2 O or 2 H 2 O ), and " super-heavy water " or tritiated water ( T 2 O or 3 H 2 O ), where the hydrogen atoms are replaced with tritium isotopes.
