Which element has atoms with valence electrons in a higher energy level than those of calcium (Ca)?
(1 point)
Responses
oxygen (O)
oxygen (O)
bromine (Br)
bromine (Br)
cesium (Cs)
cesium (Cs)
lithium (Li)
lithium (Li)
(1 point)
Responses
oxygen (O)
oxygen (O)
bromine (Br)
bromine (Br)
cesium (Cs)
cesium (Cs)
lithium (Li)
lithium (Li)