nsutton6127 nsutton6127
  • 23-08-2022
  • Chemistry
contestada

Helium is the lightest noble gas and the second most abundant element (after hydrogen) in the universe.
(b) The mass of a helium-4 atom is 6.64648x10⁻²⁴ g, and each of ts two electrons has a mass of 9.10939x10⁻²⁸ g. What fraction of this atom’s mass is contributed by its nucleus?

Respuesta :

Otras preguntas

victoria's printer can print 8.804 pages in one minute. if victoria prints pages for 0.903 minutes, about how many pages will she have
how do humans acquire voltage in their bodies
Which number, is a factor of 14 but not a multiple of 2?
Highest common factor of 240 and 432
How did the Congress of Vienna attempt to restore stability in Europe following the Napoleonic Wars?
Marcus, Sally and Sammy decided to share 20 sweets. Marcus took 8 sweets and sally took three times as many as Sammy. how many sweets did Sammy receive?
the glee club has 120 cupcakes to sell. they have decided to arrange the cupcakes in the shape of a rectangle, such that the rows have an even number of cupcake
Which area is NOT considered part of the British Isles? North Wales South Wales Portugal England
Give an example of vertical angles in your home
P=25 watts W=5000 joules t=? what is time