Mass spectrometry was discovered by Francis Aston, a British Physicist, in 1919. This involves separating mixtures of substances into their components and transforming them into beams of particles and subsequently, bending them with the use of electricity and magnetism to come up with a spectrum that is inherently unique for every individual atoms for easy identification.
3 atoms because 1 atom is of oxygen and 2 atoms are of hydrogen. (Let me know if it’s wrong or right please!)
Answer:
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