Question

Which element has seven energy levels?

rubidium (RD)
potassium (K)
cesium (Cs)
francium (Fr)

Answer 1

The answer is francium (Fr)

Step-by-step explanation:

I just took the test

Answer 2

lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (FR) all have 7 energy levels

sorry if im wrong im kinda fried RN