Write a long paragraph about the structure of carbon-12. include the following vocabulary: electron, proton, neutron, orbital, nucleus, isotope, negative, postive.

Explanation:

So many isotopes are present in nature that is the same elements having different structures or atomic weight which makes them different, although having the same name is because of the presence of changed number of neutrons in the nucleus.  

Like in the case of carbon and isotopes that are stable are two in number one is carbon 12 and the other is 13, 12 is the more abundantly found in nature. Proton’s number in the element we have here (i.e carbon) and electron’s number must be same all difference is brought up by neutrons.

they are made of gases.

they have a spherical shape.

they make energy through fusion.

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-