Which quantum number determines the energy of an electron in a hydrogen atom? which quantum number determines the energy of an electron in a hydrogen atom? l n e ml n and l?

A Hydrogen atom only contains a single electron (1 e). Therefore for this atom, the quantum number which determines the energy of an electron is best represented only by the principal quantum number. The principal quantum number has a symbol of n.

n

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e