Aktinit

15 elementler

Atom numaraları 89–103 arasındaki radyoaktif elementler. 5f elektron orbitallerinin dolmasıyla karakterize edilirler. Tüm aktinitler radyoaktiftir; uranyum ve toryum doğada en bol bulunan üyelerdir.

89 Solid Ac Actinium 227,0 u

MP: — BP: —

90 Solid Th Thorium 232,04 u

MP: — BP: —

91 Solid Pa Protactinium 231,04 u

MP: — BP: —

92 Solid U Uranium 238,03 u

MP: — BP: —

93 Solid Np Neptunium 237,0 u

MP: — BP: —

94 Solid Pu Plutonium 244,0 u

MP: — BP: —

95 Solid Am Americium 243,0 u

MP: — BP: —

96 Solid Cm Curium 247,0 u

MP: — BP: —

97 Solid Bk Berkelium 247,0 u

MP: — BP: —

98 Solid Cf Californium 251,0 u

MP: — BP: —

99 Solid Es Einsteinium 252,0 u

MP: — BP: —

100 Solid Fm Fermium 257,0 u

MP: — BP: —

101 Solid Md Mendelevium 258,0 u

MP: — BP: —

102 Solid No Nobelium 259,0 u

MP: — BP: —

103 Solid Lr Lawrencium 266,0 u

MP: — BP: —

Karşılaştırma Tablosu

#	Sembol	Ad	Kütle (u)	Erime Nk.	Kaynama Nk.	Yoğunluk	Faz
89	Ac	Actinium	227,0	—	—	—	Solid
90	Th	Thorium	232,04	—	—	—	Solid
91	Pa	Protactinium	231,04	—	—	—	Solid
92	U	Uranium	238,03	—	—	—	Solid
93	Np	Neptunium	237,0	—	—	—	Solid
94	Pu	Plutonium	244,0	—	—	—	Solid
95	Am	Americium	243,0	—	—	—	Solid
96	Cm	Curium	247,0	—	—	—	Solid
97	Bk	Berkelium	247,0	—	—	—	Solid
98	Cf	Californium	251,0	—	—	—	Solid
99	Es	Einsteinium	252,0	—	—	—	Solid
100	Fm	Fermium	257,0	—	—	—	Solid
101	Md	Mendelevium	258,0	—	—	—	Solid
102	No	Nobelium	259,0	—	—	—	Solid
103	Lr	Lawrencium	266,0	—	—	—	Solid