The Janet periodic table

The Janet periodic table is an excellent alternative periodic table and organises elements according to orbital filling. Therefore, hydrogen is above lithium on the grounds they are both ns¹, and helium above beryllium on the grounds they are both ns². Current Group numbers are displayed to help orientation with the standard table.

The JANET periodic table.

Group															3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	1	2
Period
1																															1 H	2 He
1																															3 Li	4 Be
2																									5 B	6 C	7 N	8 O	9 F	10 Ne	11 Na	12 Mg
3																									13 Al	14 Si	15 P	16 S	17 Cl	18 Ar	19 K	20 Ca
4															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	37 Rb	38 Sr
5															39 Y	40 Zr	41 Nb	42 Mo	43 Tc	44 Ru	45 Rh	46 Pd	47 Ag	48 Cd	49 In	50 Sn	51 Sb	52 Te	53 I	54 Xe	55 Cs	56 Ba
6	57 La	58 Ce	59 Pr	60 Nd	61 Pm	62 Sm	63 Eu	64 Gd	65 Tb	66 Dy	67 Ho	68 Er	69 Tm	70 Yb	71 Lu	72 Hf	73 Ta	74 W	75 Re	76 Os	77 Ir	78 Pt	79 Au	80 Hg	81 Tl	82 Pb	83 Bi	84 Po	85 At	86 Rn	87 Fr	88 Ra
7	89 Ac	90 Th	91 Pa	92 U	93 Np	94 Pu	95 Am	96 Cm	97 Bk	98 Cf	99 Es	100 Fm	101 Md	102 No	103 Lr	104 Rf	105 Db	106 Sg	107 Bh	108 Hs	109 Mt	110 Ds	111 Rg	112 Cp	113 Uut	114 Uuq	115 Uup	116 Uuh	117 Uus	118 Uuo	119 Uue	120 Ubn

The Mendeleev Periodic Table

This table shows the form of Mendeleev's Periodic Table of the chemical elements as published in 1872. The heading "Reihen" means "Row" and the heading "Gruppe" means "Group". The symbols R²O and RH⁴, etc., are written in the style of the time which uses superscripts to denote the number of atoms in molecules rather than the current style which uses subscripts. The gaps marked with hyphens ("-") represent chemical elements deduced by Mendeleev as existing but unknown in 1872. He was able to predict with considerable success the properties of some of the missing chemical elements such as germanium.

Reihen	Gruppe I. - R2O	Gruppe II. - RO	Gruppe III. - R2O3	Gruppe IV. RH4 RO2	Gruppe V. RH3 R2O5	Gruppe VI. RH2 RO3	Gruppe VII. RH R2O7	Gruppe VIII. - RO4
1	H=1
2	Li=7	Be=9,4	B=11	C=12	N=14	O=16	F=19
3	Na=23	Mg=24	Al=27,3	Si=28	P=31	S=32	Cl=35,5
4	K=39	Ca=40	-=44	Ti=48	V=51	Cr=52	Mn=55	Fe=56, Ce=59, Ni=59, Cu=63.
5	(Cu=63)	Zn=65	-=68	-=72	As=75	Se=78	Br=80
6	Rb=85	Sr=87	?Yt=88	Zr=90	Nb=94	Mo=96	-=100	Ru=104, Rh=104, Pd=106, Ag=108.
7	(Ag=108)	Cd=112	In=113	Sn=118	Sb=122	Te=125	J=127
8	Cs=133	Ba=137	?Di=138	?Ce=140	-	-	-	- - - -
9	(-)	-	-	-	-	-	-
10	-	-	?Er=178	?La=180	Ta=182	W=184	-	Os=195, Ir=197, Pt=198, Au=199
11	(Au=199)	Hg=200	Tl=204	Pb=207	Bi=208	-	-
12	-	-	-	Th=231	-	U=240	-	- - - -

The Group 1 elements other than hydrogen are called the alkali metals. The Group 1 elements are:

• Hydrogen
• Lithium
• Sodium
• Potassium
• Rubidium
• Caesium
• Francium

The Group 1 metals are all highly reactive silvery metals that are so reactive to air and moisture that they must be stored under an inert atmosphere or oil. They are all soft and can be cut easily with a knife.

Hydrogen is usually placed at the top of the Group but is not a Group 1 metal.

The electronic configuration of the elements all consist of a lone s-electron outside an inner core of electron corresponding to the previous inert gas.

This is the start of the WebElements periodic table documentation

Here is a list of the elements sorted by atomic number.

Element name	Element symbol	Atomic number
Hydrogen	H	1
Helium	He	2
Lithium	Li	3

Group	1	2															3	4	5	6	7	8	9	10	11	12	13	14	15