How does the size of the nucleus compare to the size of the space electrons have to orbit

Basically, a complete vacuum, however, don’t mistake a vacuum for simply empty space. A vacuum still has what physicists call ‘vacuum energy’, which is thought to be an underlying field of it’s own. ‘Phantom Particles’ can spontaneously come into existence in particle - antiparticle pairs, by borrowing energy from this field, only to be followed by immediate annihilation, even in this complete vacuum the empty space between the atomic cloud of an atom and its nucleus is just that: empty space, or vacuum. That's the simple answer, but there are a few subtleties: 1) Sub-atomic particles such as electrons, protons and neutrons need to be treated as quantum objects.

Explanation:

6

Explanation:

Balancing a chemical equation involves making sure that the number of atoms of each element on the reactant side is equal to that on the product side. For example, if there are 5 moles of carbon on the reactant side, there must be 5 moles of carbon on the product side. This is in accordance to the law of conservation of mass.

However, to do the above, we make use of coefficients i.e whole numbers placed behind the elements. According to this question, an unbalanced chemical reaction is given as follows:

Fe(OH)3 + Li2S → LiOH + Fe2S3

As observed, the number of atoms on each side of the reaction are unequal. Hence, coefficients are used to balance the equation as follows:

2Fe(OH)3 + 3Li2S → 6LiOH + Fe2S3

From the balanced equation, 6 is used as a coefficient in front of LiOH.