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Period 4 element



A period 4 element is one of the chemical elements in the fourth row (or period) of the periodic table of the elements.

These are:

Chemical elements in the fourth period
Group 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Atomic number
Name 		19
K 		20
Ca 		21
Sc 		22
Ti 		23
V 		24
Cr 		25
Mn 		26
Fe 		27
Co 		28
Ni 		29
Cu 		30
Zn 		31
Ga 		32
Ge 		33
As 		34
Se 		35
Br 		36
Kr
electron configuration
all begin with [Ar] 		4s1 4s2 3d14s2 3d24s2 3d34s2 3d54s1 3d54s2 3d64s2 3d74s2 3d84s2 3d104s1 3d104s2 3d104s24p1 3d104s24p2 3d104s24p3 3d104s24p4 3d104s24p5 3d104s24p6
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Period_4_element". A list of authors is available in Wikipedia.
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