Period 4 element Information & Period 4 element Links at HealthHaven.com

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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

v • d • e Periodic tables

Layouts	Standard · Inline f-block · Vertical · Full names · Names and atomic weights · Text for last · Large table · Metals and nonmetals · Blocks · Valences · Extension beyond the 7th period · Electron configurations · Atomic weights · Electronegativities · Alternatives · Crystal structure

Lists of elements by	Name · Atomic symbol · Atomic number · Atomic weight · Name etymology (after places, after people) · Discovery Boiling point · Melting point · Density · Oxidation state · Abundance (in humans) · Nuclear stability · Hardness

Groups	1 (Alkali metals) · 2 (Alkaline earth metals) · 3 · 4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 · 13 (Boron group) · 14 (Carbon group) · 15 (Pnictogens) · 16 (Chalcogens) · 17 (Halogens) · 18 (Noble gases)

Periods	1 · 2 · 3 · 4 · 5 · 6 · 7 · 8

Other element categories	Metals · Transition metals (1st row) · Metalloids · Nonmetals · Lanthanoids · Actinoids · Rare earth elements · Platinum group metals (PGMs) · Post-transition metals

Blocks	s-block · p-block · d-block · f-block