Notes
Hydrogen…
Hydrogen is the most abundant chemical element, with the symbol H and atomic number 1, and hydrogen is the lightest element.
Notes
Hydrogen is the most abundant chemical element, with the symbol H and atomic number 1, and hydrogen is the lightest element.
Staying up to date on Question/Notes related to General knowledge, current affairs and are useful in Academic and Government Exams. More than 8000 video on our channel.
Subscribe