Roentgenium

111 darmstadtium ← roentgenium → kopernisium Au ↑ Rg ↓ (Uhu) Tabel périodik
Katrangan Umum Unsur
Jeneng, Lambang, Nomer atom	roentgenium, Rg, 111
Dhèrèt kimia	logam transisi
Golongan, Période, Blok	11, 7, d
Rupa	unknown, predicted colourless
Massa atom	[280] g/mol
Konfigurasi elektron	predicted [Rn] 5f14 6d9 7s2
Cacahing èlèktron saben kulit	2, 8, 18, 32, 32, 17, 2
Fase	presumably a solid
Nomor CAS	54386-24-2
Isotop
iso NA waktu paruh DM DE (MeV) DP 280Rg syn 3.6 s α 9.75 276Mt 279Rg syn 170 ms α 10.37 275Mt 278Rg syn 4.2 ms α 10.69 274Mt 274Rg syn 15 ms α 11.23 270Mt 272Rg syn 1.6 ms α 11.02,10.82 268Mt
Referensi

Roentgenium (uniné /rɛntˈgɛniəm/, /rʌntˈdʒɛniəm/) iku sawijining unsur kimia sajeroning tabel périodik kanthi simbul Rg lan nomer atom 111. Unsur iki kalebu unsur sintètis, sing isotopé sing stabil dhéwé ndarbèni massa 283 lan separo uripé (half life) 10 menit.

Kronologi temon isotop

Isotop	Taun temon	Réaksi
272Rg	1994	209Bi(64Ni,n)
273Rg	ora dimangertèni
274Rg	2004	209Bi(70Zn,n)
275Rg	ora dimangertèni
276Rg	ora dimangertèni
277Rg	ora dimangertèni
278Rg	2006	237Np(48Ca,3n)
279Rg	2003	243Am(48Ca,4n)
280Rg	2003	243Am(48Ca,3n)

Pranala njaba

• WebElements.com: Roentgenium
• IUPAC: Proposal of name roentgenium for element 111 Archived 2008-12-02 at the Wayback Machine.
• IUPAC: Element 111 is named roentgenium Archived 2008-03-09 at the Wayback Machine.
• Apsidium: Roentgenium 111 Archived 2007-03-22 at the Wayback Machine.
• Unununium Element At Chemicalelements.com

Golongan →

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

Période ↓

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

*

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

7

87  Fr

88 Ra

**

103 Lr

104 Rf

105 Db

106 Sg

107 Bh

108 Hs

109 Mt

110 Ds

111 Rg

112 Cn

113 Nh

114 Fl

115 Mc

116 Lv

117 Ts

118 Og

* Lantanida

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

** Aktinida

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

Seri Kimia saka Tabel Périodik

Logam alkali	Alkali tanah	Lantanida	Aktinida	Logam transisi
Logam	Metaloid	Nonlogam	Halogen	Gas mulia