Why are Neutrons necessary for a stable nucleus? Predict what would happen to the atom if there were no neutrons? (hint: think of the only element that has atoms with no neutrons)

Very interesting question indeed! I can try to explain this in following words

Explanation:

Neutrons stabilize the nucleus, because they attract each other and protons , which helps offset the electrical repulsion between protons. As a result, as the number of protons increases, an increasing ratio of neutrons to protons is needed to form a stable nucleus.

Secondly if there is no neutrons then the electromagnetic repulsion between proton will not allow any stable nucleus . Also remember in hydrogen there  is only one proton so the repulsion is not experienced hence no need of neutron.

Hope this help!!

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).

the dissolution of polymer can be thermodynamically described in 2 steps.