ទំព័រគំរូ:Periodic table (noble gases)

Noble gases
អាឡូសែន ←    → លោហៈអាល់កាឡាំង
IUPAC group number 18 Name by element helium group or neon group Trivial name Noble gases, aerogens CAS group number (US) VIIIA old IUPAC number (European) Group 0
↓ Period
1	អេល្យូម (He) 2
2	នេអុង (Ne) 10
3	អាកុង (Ar) 18
4	គ្រីបតុង (Kr) 36
5	សេណុង (Xe) 54
6	រ៉ាដុង (Rn) 86
Legend primordial element element by radioactive decay Atomic number color: red=gas

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Periodic table
Group →	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
↓ Period
1	1 H																	2 He
2	3 Li	4 Be											5 B	6 C	7 N	8 O	9 F	10 Ne
3	11 Na	12 Mg											13 Al	14 Si	15 P	16 S	17 Cl	18 Ar
4	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
5	37 Rb	38 Sr	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
6	55 Cs	56 Ba	*	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
7	87 Fr	88 Ra	**	104 Rf	105 Db	106 Sg	107 Bh	108 Hs	109 Mt	110 Ds	111 Rg	112 Cn	113 Uut	114 Fl	115 Uup	116 Lv	117 Uus	118 Uuo
* Lanthanides			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
** Actinides			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
This is an 18-column periodic table layout, which has come to be referred to as the common or standard form, on account of its popularity. It is also sometimes referred to as the long form, in comparison to the short form or Mendeleev-style, which omits groups 3–12 by placing their elements into the main groups. The wide periodic table incorporates the lanthanides and the actinides, rather than separating them from the main body of the table in order to save space. The extended periodic table adds the 8th and 9th periods, including the superactinides.
Categories and subcategories in the metal–nonmetal range Metal Metalloid Nonmetal Unknown chemical properties Alkali metal Alkaline earth metal Inner transition metal Transition metal Post-transition metal Other nonmetal Halogen Noble gas Lanthanide Actinide Color of the atomic number shows state of matter (at standard conditions: 0 °C and 1 atm): black=Solid green=Liquid red=Gas grey=Unknown Border shows natural occurrence:   Primordial From decay Synthetic

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