Scientists have changed the model of the atom as they have gathered new evidence. One of the atomic models
is shown below. what experimental evidence led to the development of this atomic model from the one before it?

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

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