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# Do 3s and 4s sublevels have the same shape?

## Do 3s and 4s sublevels have the same shape?

Since they have the same azimuthal quantum number, p, they have the same shape. This specifically mentioned sublevel instead of orbital which means that we are only referring to the 3s and 4s orbitals as separates sublevels and there is no need to consider the other sublevels before them.

### What is the difference between 2s and 4s sublevel?

There can be two electrons in one orbital maximum. The s sublevel has just one orbital, so can contain 2 electrons max. And the 4 sublevel has 7 orbitals, so can contain 14 electrons max. In the picture below, the orbitals are represented by the boxes.

#### What is the difference between 3p and 4p orbitals?

The three p orbitals are more or less dumbbell-shaped, with the nucleus at the center of the dumbbell. Like the s orbitals, the p orbitals increase in size as the number of the principal energy level increases; thus a 4p orbital is larger than a 3p orbital.

Is 3s a sublevel?

1 atomic orbital in 3s sublevel x 2 electrons/orbital = 2 electrons can reside in the 3s sublevel. 3 atomic orbitals in 3p sublevel x 2 electrons/orbital = 6 electrons can reside in the 3p sublevel. 5 atomic orbitals in 5d sublevel x 2 electrons/orbital = 10 electrons can reside in the 3d sublevel.

Why is the 3s sublevel lower in energy than 3p?

The energy of an electron depends on the effective nuclear charge, Zeff. Because Zeff is larger for the 3s electrons, they have a lower energy (are more stable) than the 3p, which, in turn, are lower in energy than the 3d.

## Is 5s a sublevel?

Yes, the 5th energy level holds 5 sublevels and that last one would be 5g. Electrons fill in energy order (Aufbau Principle) not energy level order….The Principal Energy Level (the #) only holds that # of sublevels.

Principal Energy Level # of Sublevels sublevels
4 4 4s 4p 4d 4f
5 5 5s 5p 5d 5f 5g

### Does 3s have more energy than 3p?

As a result, the 3s electrons experience the least shielding, and the 3d electrons the most. The energy of an electron depends on the effective nuclear charge, Zeff. Because Zeff is larger for the 3s electrons, they have a lower energy (are more stable) than the 3p, which, in turn, are lower in energy than the 3d.

#### Does 2s or 3s have more energy?

Since the two values are found to be same, the higher energy level has to be determined by comparing their principal quantum number. So clearly 3s has higher energy.

What sublevel fills after 5s?

4d sublevel
The 4d sublevel is filled next, after the 5s sublevel.

Why does the 4s sublevel fill before the 3D?

For example, the 4s sublevel starts to fill before the 3d sublevel. This happens because the 4s sublevel has lesser energy than the 3d sublevel. The electrons are known to follow this order when filling up: 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s 5f 6d 7p 8s

## How many sublevels does the fourth shell have?

The fourth shell has four subshells and is denoted by 4s 4p 4d 4f. The fifth subshell has five sublevels and it is written as 5s 5p 5d 5f 5g and it continues. The s sublevel can accommodate two electrons. The p can hold up to six electrons.

### How are subshells related to principle energy levels?

The subshells also have different energy levels and are hence called sublevels. Each shell has a principle energy level. Each principle energy level is broken down to sublevels. There are theoretically infinite numbers of principle energy levels and infinite numbers of sublevels. The subshells are each assigned a letter.

#### Can a sublevel have more than one orbital?

One can think of an orbital as being the space where electrons inhabit. An orbital can contain a maximum of two electrons. Thus the “s” sublevel, which has only one orbital, can have only two electrons. Similar patterns are followed in other sublevels as well.