What causes atoms to form covalent bonds?
In a covalent bond, two atoms are held together by the attraction between
v The number of
covalent bonds that an atom can form depends on the number of
v
in the atom.

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).

fe 55.85 g/mol and h2o 18.02 g/mol.

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