HYDROGEN: image of a hydrogen gas molecules by Russell Kightley Media

(above) hydrogen image # 1: HYDROGEN GAS: picture showing H₂ molecules. This image is 500 x 500 pixels; the original image is 4096 x 4096 pixels.

HYDROGEN: is the first (in the periodic table) and simplest of the elements and (usually) consists of a proton with one associated electron. Under normal conditions it exists as a gas with molecules made up of two hydrogen atoms joined together (H₂). It is an intensely studied element because its quantum states are simple enough for mathematical modelling. It is also the most abundent of the elements in the cosmos and so is a favourite of astronomers.

HYDROGEN FUEL: is a very efficient and clean fuel (burning to water) but it has the disadvantage of being explosive.

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MOLECULES: HYDROGEN: hydrogen gas, H₂

ALL MOLECULAR GRAPHICS: HYDROGEN: hydrogen gas molecules (H₂)

(above) hydrogen image # 1: HYDROGEN GAS: picture showing H₂ molecules. This image is 500 x 500 pixels; the original image is 4096 x 4096 pixels.

MOLECULES: HYDROGEN: hydrogen gas, H2

ALL MOLECULAR GRAPHICS: HYDROGEN: hydrogen gas molecules (H2)

(above) hydrogen image # 1: HYDROGEN GAS: picture showing H2 molecules. This image is 500 x 500 pixels; the original image is 4096 x 4096 pixels.

MOLECULES: HYDROGEN: hydrogen gas, H₂

ALL MOLECULAR GRAPHICS: HYDROGEN: hydrogen gas molecules (H₂)

(above) hydrogen image # 1: HYDROGEN GAS: picture showing H₂ molecules. This image is 500 x 500 pixels; the original image is 4096 x 4096 pixels.