What is the chemical symbol for Hydrogen?
This chemical element is the first one in the periodic table and this fact means that the element has an atomic number of 1 (1 proton in each hydrogen atom). It is the most abundant element in the Universe!
This chemical element is the first one in the periodic table and this fact means that the element has an atomic number of 1 (1 proton in each hydrogen atom). It is the most abundant element in the Universe!