Which statement best explains how the mass of an atom is organized? a) most of the mass is contained in the nucleus b) the mass is spread evenly throughout the whole atom c) the mass is spread evenly thoughout the electron cloud d) most of the mass is contained in the electron cloud

The correct answer is Option A.

Explanation:

Atomic mass is defined as the sum of number of protons and number of neutrons that are present in an atom. It is denoted by A.

A = Number of protons + Number of neutrons

Protons and neutrons are the sub-atomic particles which are present inside the nucleus of an atom.

Thus, the total mass of an atom will be comprised inside the nucleus

Hence, the correct answer is Option A.

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).