Quiz on the periodic table by Laila and mehdi
{"name":"Quiz on the periodic table by Laila and mehdi", "url":"https://www.quiz-maker.com/QPREVIEW","txt":"Which of these 4 people is know for being the inventor of the modern periodic table, The atomic mass tells the number ____________________ in an atom., how many elements have we humans discovered","img":"https://www.quiz-maker.com/3012/images/ogquiz.png"}