Aportion of the periodic table is shown below: a portion of the fifteenth and sixteenth columns of the periodic table is shown. column 15 from reads seven nitrogen 14.007 and 15 phosphorus 30.974. column 16 reads eight oxygen 15.999 and 16 sulfur 32.065. which element has the electron configuration 1s22s22p4? nitrogen (n) oxygen (o) phosphorus (p) sulfur (s)

Here we have to choose the element which has 1s²2s²2p⁴ electronic configuration.

oxygen has the electronic configuration 1s²2s²2p⁴

The electronic configuration of the given elements are shown below:

nitrogen (N): 1s²2s²2p³

oxygen (O): 1s²2s²2p⁴

phosphorous (P): 1s²2s²2p⁶3s²3p³

Sulfur (S): 1s²2s²2p⁶3s²3p⁴

Thus oxygen has the electronic configuration 1s²2s²2p⁴

oh it is true if thats what you are asking

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.