How many electrons can the n = 4 shell hold?
1. 8
2. 16
3. 32
4. 64

3. 32

Explanation:

The maximum electronic population of an energy level is given by the expression , in which n represents the number of the level. This, however, is a theoretical maximum, since from level 4 onwards this value is never reached, due to the preposition of the sub-levels.

when it is required to know the number of electrons of a level, it is more appropriate to obtain it based on the electronic configuration by sub-levels, as shown in the attached image.

So, for n=4 we have:

That is a total of 32 electrons (2+6+10+14).

You can calculate that by 2n² = 2(4)² = 2 * 16 = 32.

So, ANSWER IS (3).32

the volume increases

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.