The second shell can hold a maximum of **eight electrons**. When this is filled, electrons go into the third shell, which also holds a maximum of eight electrons.

Electron shells.

Energy shell | Maximum number of electrons |
---|---|

First | 2 |

Second | 8 |

Third | 8 |

How many electrons are in the third shell?

- 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.

## How many orbitals are in the 3rd shell?

There are **nine orbitals** in the n = 3 shell. There is **one orbital** in the 3s subshell and **three orbitals** in the 3p subshell. The n = 3 shell, however, also includes 3d orbitals.

## Why is 3rd shell 8 or 18?

In this sense the **third shell** can hold **8** electrons. In this sense the **third shell** can hold a total of **18** electrons. So the **third shell** can be considered to hold **8 or 18** electrons but in total the **third shell** can hold **18** electrons.

## How many electrons can the 4th Shell hold?

Search form

n= | Shell | Maximum Number of Electrons |
---|---|---|

1 | 1st Shell | 2 |

2 | 2nd Shell | 8 |

3 | 3rd Shell | 18 |

4 | 4th Shell | 32 |

## Why does the third shell have 8 electrons?

The **electron** capacity of the **third shell** is **8**, when there are no **shells** above it. And that is the case for all elements in the **third** period. It is only when there are outer **shells** surrounding it that the **third** (or higher) **shell has** a higher capacity.

## What are the 4 quantum numbers?

**Quantum Numbers**

- To completely describe an electron in an atom, four quantum numbers are needed: energy (
**n**),**angular momentum**(**ℓ**), magnetic moment (m), and_{ℓ}**spin**(m)._{s} - The first quantum number describes the electron shell, or energy level, of an atom.
- The dynamics of any quantum system are described by a quantum Hamiltonian (H).

## What is the 3rd quantum number?

The **Third Quantum Number**: Orientation in Three Dimensional Space. The **third quantum number**, m l is used to designate orientation in space. The figure-8 shape with ℓ = 1, has three shapes needed to completely fill the spherical shape of an electron cloud.

## Why does the third period contain 8 elements but not 18?

According to the 2n^{2} rule, the maximum number of electrons in the **third period** = 2 x (3)^{2} = **18**. But, the last shell cannot accommodate more than **8** electrons so, the number of electrons in **third period** is **8**. Hence, the number of **elements** is also **8**.

## What is the 2 8 8 rule in chemistry?

There is a **2**–**8**–**8 rule** for these elements. The first shell is filled with **2** electrons, the second is filled with **8** electrons, and the third is filled with **8**. You can see that sodium (Na) and magnesium (Mg) have a couple of extra electrons. They, like all atoms, want to be happy.

## Why are the shells named KLMN?

The **names** of the electron **shell** were given by a spectroscopist **named** Charles G Barkla. He **named** the innermost **shell** has k **shell** because he noticed that the X-rays emitted two types energies. These energies were **named** as type A that is higher energy X-ray and type B that is lower energy X-ray.

## How many electrons are in the 5 shell?

Questions and Answers

Energy Level (Principal Quantum Number) | Shell Letter |
Electron Capacity |
---|---|---|

2 | L | 8 |

3 | M | 18 |

4 | N | 32 |

5 |
O | 50 |

## Would an electron have to absorb or release energy?

The **electron can** gain the **energy** it **needs** by absorbing light. If the **electron** jumps from the second **energy** level down to the first **energy** level, it must give off some **energy** by emitting light. The atom **absorbs** or emits light in discrete packets called photons, and each photon **has** a definite **energy**.

## What is the maximum number of electrons in n 4 L 3?

Solution: ( c) If **n**=**4** and **l**=**3**, it means it is a **4** f-orbital Therefore, the total **number** od **electrons** in **4** f-orbital is 14.

## Why does the number of electrons in the third shell suddenly change from 8 to 18?

Explain why the **number of electrons in the third shell suddenly changes from 8 to 18** between the element calcium, Ca, and Gallium, Ga? Because there **are** 10 euments between Ca and Ga. **8**. On the Table of **Electron Shells** handout complete the bottom section to describe the ion properties of each group.

## Why does scandium have 9 electrons in the third shell?

**Scandium** is the first element of the period table where **electron** configurations start getting a little wild. Every element adds one more **electron** to the outermost **shell**. Instead of **having** three **electrons** in the outer **shell**, **scandium** adds its **electron** to the second to last **shell**. The **electron** configuration is 2-8-**9**-2.