The electron configuration of an atom is the representation of the arrangement of electrons distributed among the orbital shells and subshells. Commonly, the electron configuration is used to describe the orbitals of an atom in its ground state, but it can also be used to represent an atom that has ionized into a cation or anion by compensating with the loss of or gain of electrons in their subsequent orbitals. Many of the physical and chemical properties of elements can be correlated to their unique electron configurations. The valence electrons, electrons in the outermost shell, are the determining factor for the unique chemistry of the element.
Explanation:
For each electron, there is a ground state and an excited state. Here, we will discuss the ground state electron configuration, which is about the electron configuration of an atom at the lowest possible energy level. The other state, the excited state, means that the valence electron has moved from its ground state orbital to another higher energy orbital.
Based on the electronic configuration, the chemical reactivity of substances can be predicted, what kind of reaction is likely to happen and how strong the reaction will be. The electron configuration is also helpful in determining the valency of an element.
The other way to represent an electron configuration is through an orbital diagram. In an orbital diagram, orbitals are given as boxes, and electrons are represented by arrows (↑ or ↓), with two electrons occupying each box. Orbitals are labeled based on their principal energy levels and sublevels (1s, 2p, and so on).
Answers & Comments
Answer:
H
Na
1s
15
25
2p
3s
He
Mg
1s
1s
2s
2p
3s
Li
Al
2s
15
25
2p
3s
3p
Be
!
Si
15
2s
2p
3s
2s
1s
3p
B
P
2s
1s
2s
1s
2p
3s
2p
3p
S
C
1s
2p
3s
3p
1s
2s
2p
N
T
CI
25
1s
2s
3s
2p
2p
3p
T
Ar
תזות
1s
2s
1s
2s
2p
2p
3s
3p
F
זזה
K
1s
2s
2p
1s
2s
2p
3s
3p
4s
Ne
Ca
1s
2s
2p
18
25
2p
3s
Зр
4s
Answer:
The electron configuration of an atom is the representation of the arrangement of electrons distributed among the orbital shells and subshells. Commonly, the electron configuration is used to describe the orbitals of an atom in its ground state, but it can also be used to represent an atom that has ionized into a cation or anion by compensating with the loss of or gain of electrons in their subsequent orbitals. Many of the physical and chemical properties of elements can be correlated to their unique electron configurations. The valence electrons, electrons in the outermost shell, are the determining factor for the unique chemistry of the element.
Explanation:
For each electron, there is a ground state and an excited state. Here, we will discuss the ground state electron configuration, which is about the electron configuration of an atom at the lowest possible energy level. The other state, the excited state, means that the valence electron has moved from its ground state orbital to another higher energy orbital.
Based on the electronic configuration, the chemical reactivity of substances can be predicted, what kind of reaction is likely to happen and how strong the reaction will be. The electron configuration is also helpful in determining the valency of an element.
The other way to represent an electron configuration is through an orbital diagram. In an orbital diagram, orbitals are given as boxes, and electrons are represented by arrows (↑ or ↓), with two electrons occupying each box. Orbitals are labeled based on their principal energy levels and sublevels (1s, 2p, and so on).