Two very large parallel planes having surface conditions which very nearly approximate those of a black body are maintained at 1100 and 425 °c, respectively. calculate the heat transfer by radiation between the planes per unit time per unit surface area.

"the periodic table is arranged in order of atomic number."

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).

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