What is the electron configuration of an element with atomic number 15? a. 1s2 2s2 2p6 b. 1s2 2s2 2p6 3s2 3p5 c. 1s2 2s2 2p6 3s2 3p3 d. 1s2 2s2 2p6 3s2 e. 1s2 2s2 2p6 3p3 3s2 3p1.

Which of the following is an example of an opposing signal? no examplthates given.   i would say, that traffic lights in a city at major intersections direct the flow of traffic in opposite directions so would be an example.also, stop signs on either side of the same street would be an example. at a train crossing, the light for allowing car traffic in opposite directions or not would be another example.

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