The camouflaged atom behaves chemically like hydrogen, but has four times the mass of normal hydrogen, allowing predictions for how atomic mass affects reaction rates to be put … Close Advertisement ...

Hydrogen: Most hydrogen atoms have 1 proton and 0 neutrons, so the mass number of hydrogen is 1. Carbon: A common form of carbon has 6 protons and 6 neutrons. Thus, the mass number of this carbon ...

Hidden role of hydrogen—study reveals how atom position controls molecular breakdown pathways. ... ESO 280-SC06 is a tidally disrupted globular cluster that has lost almost all its mass, ...