Mohs Hardness of the elements ; Tellurium, 2.25, Chromium ; Bismuth, 2.25, Boron ; Terbium, 2.33 · Hydrogen ; Magnesium, 2.5, Helium ; Zinc, 2.5, Nitrogen ...

Hydrogen is the lightest element, though accounts for roughly 90% of the universe by weight. When hydrogen burns in air, water is left as the only waste product ...

Brinell Hardness, N/A. Mohs Hardness, N/A. Vickers Hardness, N/A. Bulk ... 0.0115%. Notes on the properties of Hydrogen: Density: Density given for H at ...

Mohs Hardness Chart - Mohs Hardness of the elements in table chart format ... Element Mohs Hardness (MPa). 1, H, Hydrogen, -. 2, He, Helium, -. 3, Li, Lithium ...

Hydrogen's properties, interesting facts, discovery, videos, images, uses ... Hardness, –. Specific heat capacity, 14.304 J g-1 K-1. Heat of fusion, 0.117 ...

Hydrogen is has a hardness of approximately N/A. Hydrogen – Crystal Structure. A possible crystal structure of Hydrogen is hexagonal structure.

The maximum tolerable limit of degree of hardness in water required for our daily needs is approximately ... D700 to 800 ppm.

... The hydrogen-induced hardening can be assigned to hydrogen trapped at the dislocation core in the dilatation stress field omitting the slip of dislocations.

^ Hardness can vary by several hundred percent depending on the pretreatment, see e.g. Iron#Mechanical properties and Angelo Basile; Fausto Gallucci (2011).

Hydrogen is an essential element for life. It is present in water and in almost all the molecules in living things.