Erwin schrodinger developed the quantum model of the atom. what scientific knowledge was necessary for schrodinger's work
a. the discovery of the electron
b. the discovery of gamma rays
c. the invention of computers for complex calculations
d. the inventions of microscopes for seeing subatomic particles

That would be the discovery of the electron

There is no graph to look at on here, but i shall explain them to you. a line graph is just in its title it’s a graph with a line running through the dots to show an increase or decrease. a bar graph is used to show how much or how little something is so a comparison. a scatter plot is used to graph points to tell the data. and i don’t know what a histogram is.