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What are the energy levels of an atom occupied by?
An atom's energy levels are occupied by electrons. Electrons occupy the energy levels, or electron shells, in order of increasing energy. The lowest energy level is filled first before electrons move to higher energy levels.
How many energy levels are occupied in an atom of oxygen?
An atom of oxygen has 2 energy levels that are occupied - the first energy level (K shell) can hold up to 2 electrons, and the second energy level (L shell) can hold up to 6 electrons. Oxygen has a total of 8 electrons.
How are electrons in atom organized?
Electrons occupied certain discrete energy levels around the nucleus.
What is the highest occupied energy level in the element potassium?
The highest occupied energy level in potassium is the fourth energy level because potassium has 19 electrons, occupying the first three energy levels (with 2, 8, and 8 electrons, respectively) and the remaining electron is in the fourth energy level.
How many electrons can be in the first energy levels?
Two electrons can be housed in the first energy level.
How many valence electrons are on the first 3 energy levels?
The first energy level has a maximum of two valence electrons. The second and third energy levels have a maximum of 8 valence electrons.
How many energy levels does carbon have?
Carbon has 2 energy levels. There are 6 electrons, 6 protons, and 6 neutrons.
Where do electrons tend to settle?
Electrons tend to settle in energy levels around an atom's nucleus. These energy levels are called orbitals, which can hold a specific number of electrons based on their energy. Electrons will fill the lowest energy levels first before moving to higher energy levels.
What the Aufbau principle state?
The principle is: electrons fill first the lower energy levels.
How many energy levels are partially or fully occupied in a neutral atom of calcium?
A neutral atom of calcium has five energy levels that are partially or fully occupied. These energy levels are filled with electrons according to the Aufbau principle, with the first two levels (K and L) being fully filled while the remaining three levels (M, N, and O) are partially filled.
Which energy levels contain electrons that have the lowest energy?
Electrons located in the innermost energy levels (such as the 1s level) have the lowest energy. These energy levels are closest to the nucleus and are filled first in an atom according to the aufbau principle.
Which electrons in oxygen have more energy those in the first level or those in the second?
More energy have the electrons in the second level of energy.
