Chemistry, 28.06.2019 07:30 ineedhelpireallydo
Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she said six neutrons to her model so far. how many more neutrons does she need to add to compare to her neutral atom of magnesium a) 3 b) 6 c) 12 d) 18
Answers: 1
Chemistry, 21.06.2019 17:30
Supongamos que estás estudiando dos estrellas. ambas estrellas tienen la misma magnitud aparente, pero la estrella a tiene una magnitud absoluta mayor que la estrella b. ¿que puedes decir acerca de la distancia a la tierra de estas dos estrellas?
Answers: 3
Chemistry, 22.06.2019 13:30
Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves
Answers: 1
Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class...
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