# What are the different energy levels of an atom?

## What are the different energy levels of an atom?

These zones are known as energy levels (or sometimes called electron shells). 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.

## What are the 3 main energy levels?

Each principal energy level above the first contains one s orbital and three p orbitals. A set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. Therefore, the second level can contain a maximum of eight electrons – that is, two in the s orbital and 6 in the three p orbitals.

What is the 5 energy level?

The fifth energy level contains: 5s (which holds 2 electrons), 5p (which holds 6), 5d (holds 10), and 5f (holds 14) for a total of 32 electrons.

What is the main energy level?

In chemistry, the principal energy level of an electron refers to the shell or orbital in which the electron is located relative to the atom’s nucleus. This level is denoted by the principal quantum number n. The first element in a period of the periodic table introduces a new principal energy level.

### Which electrons have the most energy?

Electrons at higher energy levels, which are farther from the nucleus, have more energy. They also have more orbitals and greater possible numbers of electrons. Electrons at the outermost energy level of an atom are called valence electrons.

### Which energy level has the least amount of energy?

Energy is lost as you go up the trophic levels. Therefore the trophic level with the least amount of energy is the secondary consumers.

What does energy level stand for?

energy level. n. 1. ( General Physics ) a constant value of energy in the distribution of energies among a number of atomic particles. 2. (General Physics) the energy of a quantum state of a system. The terms energy level and energy state are often used loosely to mean quantum state.

What is an energy level diagram?

energy-level diagram. A diagram in which the energy levels of a quantized system are indicated by distances of horizontal lines from a zero energy level. Also known as energy diagram; level scheme.

## How many electrons can each energy level hold?

A principal energy level may contain up to 2n 2 electrons, with n being the number of each level. The first energy level can contain 2 (1) 2 or two electrons; the second can contain up to 2 (2) 2 or eight electrons; the third can contain up to 2 (3) 2 or 18 electrons, and so on.