55 - Cesium [Cs]

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element by number01 - H [Hydrogen]2 - He [Helium]3 - Li [Lithium]4 - Be [Beryllium]5 - B [Boron]6 - C [Carbon]7 - N [Nitrogen]8 - O [Oxygen]9 - F [Fluorine]10 - Ne [Neon]11 - Na [Sodium]12 - Mg [Magnesium]13 - Al [Aluminum]14 - Si [Silicon]15 - P [Phosphorus]16 - S [Sulfur]17 - Cl [Chlorine]18 - Ar [Argon]19 - K [Potassium]20 - Ca [Calcium]21 - Sc [Scandium]22 - Ti [Titanium]23 - V [Vanadium]24 - Cr [Chromium]25 - Mn [Manganese]26 - Fe [Iron]27 - Co [Cobalt]28 - Ni [Nickel]29 - Cu [Copper]30 - Zn [Zinc]31 - Ga [Gallium]32 - Ge [Germanium]33 - As [Arsenic]34 - Se [Selenium]35 - Br [Bromine]36 - Kr [Krypton]37 - Rb [Rubidium]38 - Sr [Strontium]39 - Y [Yttrium]40 - Zr [Zirconium]41 - Nb [Niobium]42 - Mo [Molybdenum]43 - Tc [Technetium]44 - Ru [Ruthenium]45 - Rh [Rhodium]46 - Pd [Palladium]47 - Ag [Silver]48 - Cd [Cadmium]49 - In [Indium]50 - Sn [Tin]51 - Sb [Antimony]52 - Te [Tellurium]53 - I [Iodine]54 - Xe [Xenon]55 - Cs [Cesium]56 - Ba [Barium]57 - La [Lanthanum]58 - Ce [Cerium]59 - Pr [Praseodymium]60 - Nd [Neodymium]61 - Pm [Promethium]62 - Sm [Samarium]63 - Eu [Europium]64 - Gd [Gadolinium]65 - Tb [Terbium]66 - Dy [Dysprosium]67 - Ho [Holmium]68 - Er [Erbium]69 - Tm [Thulium]70 - Yb [Ytterbium]71 - Lu [Lutetium]72 - Hf [Hafnium]73 - Ta [Tantalum]74 - W [Tungsten]75 - Re [Rhenium]76 - Os [Osmium]77 - Ir [Iridium]78 - Pt [Platinum]79 - Au [Gold]80 - Hg [Mercury]81 - Tl [Thallium]82 - Pb [Lead]83 - Bi [Bismuth]84 - Po [Polonium]85 - At [Astatine]86 - Rn [Radon]87 - Fr [Francium]88 - Ra [Radium]89 - Ac [Actinium]90 - Th [Thorium]91 - Pa [Protactinium]92 - U [Uranium]93 - Np [Neptunium]94 - Pu [Plutonium]95 - Am [Americium]96 - Cm [Curium]97 - Bk [Berkelium]98 - Cf [Californium]99 - Es [Einsteinium]100 - Fm [Fermium]101 - Md [Mendelevium]102 - No [Nobelium]103 - Lr [Lawrencium]104 - Rf [Rutherfordium]105 - Db [Dubnium]106 - Sg [Seaborgium]107 - Bh [Bohrium]108 - Hs [Hassium]109 - Mt [Meitnerium]110 - Ds [Darmstadtium]111 - Rg [Roentgenium]112 - Cn [Copernicium]113 - Uut [Ununtrium]114 - Fl [Flerovium]115 - Uup [Ununpentium]116 - Lv [Livermorium]117 - Uus [Ununseptium]118 - Uuo [Ununoctium]

element by name0Actinium [89 - Ac ]Aluminum [13 - Al ]Americium [95 - Am ]Antimony [51 - Sb ]Argon [18 - Ar ]Arsenic [33 - As ]Astatine [85 - At ]Barium [56 - Ba ]Berkelium [97 - Bk ]Beryllium [4 - Be ]Bismuth [83 - Bi ]Bohrium [107 - Bh ]Boron [5 - B ]Bromine [35 - Br ]Cadmium [48 - Cd ]Calcium [20 - Ca ]Californium [98 - Cf ]Carbon [6 - C ]Cerium [58 - Ce ]Cesium [55 - Cs ]Chlorine [17 - Cl ]Chromium [24 - Cr ]Cobalt [27 - Co ]Copernicium [112 - Cn ]Copper [29 - Cu ]Curium [96 - Cm ]Darmstadtium [110 - Ds ]Dubnium [105 - Db ]Dysprosium [66 - Dy ]Einsteinium [99 - Es ]Erbium [68 - Er ]Europium [63 - Eu ]Fermium [100 - Fm ]Flerovium [114 - Fl ]Fluorine [9 - F ]Francium [87 - Fr ]Gadolinium [64 - Gd ]Gallium [31 - Ga ]Germanium [32 - Ge ]Gold [79 - Au ]Hafnium [72 - Hf ]Hassium [108 - Hs ]Helium [2 - He ]Holmium [67 - Ho ]Hydrogen [1 - H ]Indium [49 - In ]Iodine [53 - I ]Iridium [77 - Ir ]Iron [26 - Fe ]Krypton [36 - Kr ]Lanthanum [57 - La ]Lawrencium [103 - Lr ]Lead [82 - Pb ]Lithium [3 - Li ]Livermorium [116 - Lv ]Lutetium [71 - Lu ]Magnesium [12 - Mg ]Manganese [25 - Mn ]Meitnerium [109 - Mt ]Mendelevium [101 - Md ]Mercury [80 - Hg ]Molybdenum [42 - Mo ]Neodymium [60 - Nd ]Neon [10 - Ne ]Neptunium [93 - Np ]Nickel [28 - Ni ]Niobium [41 - Nb ]Nitrogen [7 - N ]Nobelium [102 - No ]Osmium [76 - Os ]Oxygen [8 - O ]Palladium [46 - Pd ]Phosphorus [15 - P ]Platinum [78 - Pt ]Plutonium [94 - Pu ]Polonium [84 - Po ]Potassium [19 - K ]Praseodymium [59 - Pr ]Promethium [61 - Pm ]Protactinium [91 - Pa ]Radium [88 - Ra ]Radon [86 - Rn ]Rhenium [75 - Re ]Rhodium [45 - Rh ]Roentgenium [111 - Rg ]Rubidium [37 - Rb ]Ruthenium [44 - Ru ]Rutherfordium [104 - Rf ]Samarium [62 - Sm ]Scandium [21 - Sc ]Seaborgium [106 - Sg ]Selenium [34 - Se ]Silicon [14 - Si ]Silver [47 - Ag ]Sodium [11 - Na ]Strontium [38 - Sr ]Sulfur [16 - S ]Tantalum [73 - Ta ]Technetium [43 - Tc ]Tellurium [52 - Te ]Terbium [65 - Tb ]Thallium [81 - Tl ]Thorium [90 - Th ]Thulium [69 - Tm ]Tin [50 - Sn ]Titanium [22 - Ti ]Tungsten [74 - W ]Ununoctium [118 - Uuo ]Ununpentium [115 - Uup ]Ununseptium [117 - Uus ]Ununtrium [113 - Uut ]Uranium [92 - U ]Vanadium [23 - V ]Xenon [54 - Xe ]Ytterbium [70 - Yb ]Yttrium [39 - Y ]Zinc [30 - Zn ]Zirconium [40 - Zr ]

55: Cesium - Cesium [Cs]
Group: 1
Period: 6
Atomic number: 55
Atomic mass: 132.9054519
Configuration: [Xe] 6s¹
Atomic radius: 298 pm
Covalent radius: 244 pm
Electron affinity: 45.5 eV
Ionization energy: 3.8939 eV
Electronic term: ²S_1/2
Mass fraction in the earth crust: 0.0000019
Mass fraction in the earth space: 0.0000000008
Electronegativity: 0.79