What is the number of electrons if the first and second energy levels are full?

A. Energy Levels Each principal energy level can contain up to 2n2 electrons, where n is the number of the level. Thus, the first level can contain up to 2 electrons, 2(12) = 2; the second up to 8 electrons, 2(22) = 8; the third up to 18, 2(32) = 18; and so on.

What is the maximum number of electron in the 1st and 2nd energy shells of an atom?

Each shell can contain only a fixed number of electrons: The first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on.

When K and L shells of an atom are full then what would be the total number of electrons in the atom?

10 electrons
The maximum number of electrons that can be occupied in the K and L-shells of an atom are 2 and 8 respectively. Therefore, if the K and L-shells of an atom are full, then the total number of electrons in the atom would be (2 + 8) = 10 electrons.

What would be the total number of electrons if the N shell of an atom has 1 electron?

As it’s now commonly known [without exception or not yet noticed deviation]: N shell maximum is 32 electrons; sub-shells 4s=2+4p=8+4d=18+4f=32 (total electrons maximum) per one N shell. Following the order: KLMN, N is fourth shell of an atom.

How many electrons are in the second energy level of an atom of each element?

eight electrons
Therefore, the second energy level can hold a maximum of eight electrons. The shape of an atomic orbital is defined through the use of mathematics. It describes regions in space where electrons are most likely to be located.

How many electrons are in the second energy level for an atom of N?

8 electrons
Two is the maximum number of electrons for the level so the other electrons will have to go in higher energy levels. The n=2 level can hold up to eight electrons so the next 8 electrons will go in the n=2 level. The remaining 7 electrons can go in the n=3 level since it holds a maximum of 8 electrons.

How many electrons can go in the second energy level?

There are 2 electrons on the first energy level, 8 electrons on the second level, and 1 electron on the third energy level. Explain that the second energy level can only have 8 electrons so the next electron in sodium has to be on the next (third) level.

What is the shell capacity of K and M shells of an atom respectively?

Each shell can only hold certain number of electrons. K shell can have 2, L can have 8 , M can have 18 electrons and so on.

What is the name of the element whose K and L shells are completely filled?

K shell holds 2 electrons and L shell holds 8 electrons so it both are completely filled then the number of electron =2+8=10 and this element is Neon.

What is the electron capacity of N shell?

32 electrons
Answer: N shell can have a maximum of 32 electrons.

What is an N shell?

the fourth shell of electrons surrounding the nucleus of an atom and containing, when filled, 32 electrons having principal quantum number 4. …

How many electrons does it take to fill the first two levels?

The next atom is lithium, with three electrons. Because the closest shell is filled, the third electron goes into the next higher shell. This shell has spaces for eight electrons, so that it takes an atom with 10 electrons (neon) to fill the first two levels.

What are electron shells and electron energy levels?

Electron shells are also called electron energy levels because the energy of the electrons within them changes from shell to shell. The electrons in the innermost shell are the least energetic, and those in the outermost shell are the most energetic. Let’s look at an example. Example 2: Number of Electrons in the Different Electron Shells

How many excited electrons are there in the third energy level?

There are 2 electrons in excited states, the ones in the third energy level. When there are no excited electrons, energy levels fill up innermost to outermost. This means that before the second shell can begin being filled, it must have a full first shell.

Can an electron exist on more than one energy level?

The electron just cannot exist between energy levels. It’s always got to be right on one of the energy levels. Okay, so let’s say our electron starts off on the zero eV energy level. It’s good to note that the lowest energy level an electron can have in an atom is called the ground state.