Log ind
WAEC - Chemistry (1993 - No. 7)
Which of the following pairs illustrates isotopy?
But-l-ene and but -2-ene
Ortho-hydrogen and parahydrogen
Oxygen and ozone
Hydrogen and deuterium
Alpha-particle and beta-particle
Kommentarer (0)
Log ind for at kommentere
Reklame
Tillad, at javascript indlæser denne side korrekt
