The half-life of carbon-14 is 5730 years. if we start with 10 grams of carbon-14, after 5730 years, we will have of carbon-14 left. a. 1 gram b. 2.5 grams c. 5 grams d. zero grams

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).

i think its 100.

hope this !