Rucete ✏ Chemistry In a Nutshell
2 It is half the distance between the atomic nucleus of an element combined by a single convert bond or metallic crystal.
3 Influencing factor of atomic radius
1. The principal quantum number
2. The amount of positive charge in the nucleus
4 Atomic radius increases as goes down a group.
5 Atomic radius decreases across a period.
6 In the case of a transfer metal element, the degree to which the atomic radius becomes smaller is relatively low when the atomic number increases at a their period.
(To find out why, let's first look at the obital energy level of a multi-electron atom.
1s<2s<2p<3s<3p<4s<3d<4p...
As the atomic number increases, the electrons are filled according to the principle of stacking from the obital with a low energy level.
This causes electrons to be filled in the M shell before the 4 period, not in the outermost shell, but because of differences in energy levels.)
Atomic Radius | In a nutshell
1 The distance from the atomic nucleus to the outermost stable electron orbital of the atom.2 It is half the distance between the atomic nucleus of an element combined by a single convert bond or metallic crystal.
3 Influencing factor of atomic radius
1. The principal quantum number
2. The amount of positive charge in the nucleus
4 Atomic radius increases as goes down a group.
5 Atomic radius decreases across a period.
6 In the case of a transfer metal element, the degree to which the atomic radius becomes smaller is relatively low when the atomic number increases at a their period.
(To find out why, let's first look at the obital energy level of a multi-electron atom.
1s<2s<2p<3s<3p<4s<3d<4p...
As the atomic number increases, the electrons are filled according to the principle of stacking from the obital with a low energy level.
This causes electrons to be filled in the M shell before the 4 period, not in the outermost shell, but because of differences in energy levels.)
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Chemistry in a nutshell