«Մասնակից:Արսենյան Գոհար/Ավազարկղ»–ի խմբագրումների տարբերություն

[[File:Caffeine (1) 3D ball.png|upright=1.05|thumb|right|A ball-and-stick representation of the [[caffeine]] molecule (C₈H₁₀N₄O₂).]]

 

 

Thus, molecules exist as electrically neutral units, unlike ions. When this rule is broken, giving the "molecule" a charge, the result is sometimes named a [[molecular ion]] or a polyatomic ion. However, the discrete and separate nature of the molecular concept usually requires that molecular ions be present only in well-separated form, such as a directed beam in a vacuum in a [[mass spectrometer]]. Charged polyatomic collections residing in solids (for example, common sulfate or nitrate ions) are generally not considered "molecules" in chemistry. Some molecules contain one or more unpaired electrons, creating [[Radical (chemistry)|radicals]]. Most radicals are comparatively reactive, but some, such as nitric oxide (NO) can be stable.