Cross reference of the C/O with N/O for the population of warm Jupiters. We show here both the reset (squares) and ongoing (circles) models, which generally lie on a pair of straight lines. The slopes of these lines represent the elemental ratio N/C, which must be generally constant for most planets. The black point and error bars denote Jupiter’s C/O and N/O along with estimates for possible ranges. Due to the uncertainty in observed elemental abundances, Jupiter is consistentwith planets from the reset model but not with the ongoing model. The colour of each point denotes the trap from which the planet originated: ice line (blue), dead zone (orange), and heat transition (green).