# How many can the first energy level hold?

## How many can the first energy level hold?

2 electrons

The first energy level can hold up to 2 electrons, the second energy level can hold up to 8 electrons, the third energy level can hold up to 18 electrons, and the fourth energy level can hold up to 32 electrons. As mentioned above, each energy level or electron shell often contains multiple subshells.

**How many electrons can the lowest first energy level hold?**

At the lowest energy level, the one closest to the atomic center, there is a single 1s orbital that can hold 2 electrons. At the next energy level, there are four orbitals; a 2s, 2p1, 2p2, and a 2p3. Each of these orbitals can hold 2 electrons, so a total of 8 electrons can be found at this level of energy.

**How many electrons can fit in all of the energy level?**

Questions and Answers

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

1 | K | 2 |

2 | L | 8 |

3 | M | 18 |

4 | N | 32 |

### How many electrons can the second level hold?

Two of the lithium electrons can fit into the 1s subshell, but the third electron must go into the second shell. The second shell has two subshells, s and p, which fill with electrons in that order. The 2s subshell holds a maximum of 2 electrons, and the 2p subshell holds a maximum of 6 electrons.

**How many orbitals are in the 1st energy level?**

one s orbital

The first energy level contains only one s orbital, the second energy level contains one s orbital and three p orbitals, and the third energy level contains one s orbital, three p orbitals, and five d orbitals.

**How many electrons can fit in the first energy level closest to the nucleus?**

The shell closest to the nucleus, 1n, can hold two electrons, while the next shell, 2n, can hold eight, and the third shell, 3n, can hold up to eighteen. The number of electrons in the outermost shell of a particular atom determines its reactivity, or tendency to form chemical bonds with other atoms.

#### How many electrons can each level hold 1st 2nd 3rd?

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 electrons can the 3 energy level hold?**

18 electrons

Note: The third energy level can actually hold up to 18 electrons, so it is not really filled when it has 8 electrons in it. But when the third level contains 8 electrons, the next 2 electrons go into the fourth level.

**How many electrons can the 1st shell hold?**

two electrons

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 electrons can energy level 3?

Note: The third energy level can actually hold up to 18 electrons, so it is not really filled when it has 8 electrons in it. But when the third level contains 8 electrons, the next 2 electrons go into the fourth level. Then, believe it or not, 10 more electrons continue to fill up the rest of the third level.

**How many electrons can the orbitals hold?**

Orbital: A region of space within an atom where an electron in a given subshell can be found. Any orbital can hold a maximum of 2 electrons with opposite spin.

**How many total electrons can exist in energy level 3?**

Each energy level (shell) has more subshells available to it: The first shell only has the s subshell ⟹ 2 electrons. The second shell has the s and p subshells ⟹ 2 + 6 = 8 electrons. The third shell has the s, p, and d subshells ⟹ 2 + 6 + 10 = 18 electrons.

### How many electrons can each energy level hold?

The maximum number of electrons that an energy level can hold is determined from the formula 2n^2 equals the total number, where n is the energy level. Thus, the first energy level holds 2 * 1^2 = 2 electrons, while the second holds 2 * 2^2 = 8 electrons.

**How many electrons are in a carbon atom?**

The carbon atom has an atomic number of 6 and a mass number of 12. The carbon atom contains: Using the formula X=2n^2, if n=1, then X= ___. The energy level indicated by n=1 is the first energy level. Therefore, the first energy level can hold a maximum of __ electrons. Can the first energy level hole fewer than two electrons?

**How to calculate the number of orbitals in an atom?**

The number of orbitals for any level of interest n is calculated by a formula . Since each orbital contains a maximum of 2 electrons, we can calculate the total number of electrons in an nth orbital by . The third energy level can hold a maximum of electrons.

#### How are the number of electrons in a shell determined?

Each shell contains one or more subshells, each of which also can contain only a maximum number of electrons, determined by the formula 4l + 2, where l is the quantum number of the subshell.