27 dic 1912 anni - Bohr Planetary Model a planetary model in which the negatively-charged electrons orbit a small, positively-charged nucleus. Was only accurate with only one electron elements (1913) Henry Moseley Made Moseley’s law, which states that the frequency of x-ray radiation has a mathematical relationship to an element's atomic number. (1913)
Aggiunto al nastro di tempo:
Data:
27 dic 1912 anni
Adesso
~ 112 years ago