1H1.0083Li6.9411Na22.9919K39.137Rb85.4755Cs132.987Fr223
4Be9.01212Mg24.3120Ca40.0838Sr87.6256Ba137.388Ra226
21Sc44.9639Y88.91
57La138.989Ac227
22Ti47.8740Zr91.2272Hf178.5104Rf267
58Ce140.190Th232
23V50.9441Nb92.9173Ta180.9105Db268
59Pr140.991Pa231
24Cr5242Mo95.9574W183.8106Sg271
60Nd144.292U238
25Mn54.9443Tc97.9175Re186.2107Bh274
61Pm144.993Np237
26Fe55.8544Ru101.176Os190.2108Hs269
62Sm150.494Pu244
27Co58.9345Rh102.977Ir192.2109Mt276
63Eu15295Am243
28Ni58.6946Pd106.478Pt195.1110Ds281
64Gd157.396Cm247
29Cu63.5547Ag107.979Au197111Rg281
65Tb158.997Bk247
30Zn65.3848Cd112.480Hg200.6112Cn285
66Dy162.598Cf251
5B10.8113Al26.9831Ga69.7249In114.881Tl204.4113Nh286
67Ho164.999Es252
6C12.0114Si28.0932Ge72.6350Sn118.782Pb207.2114Fl289
68Er167.3100Fm257
7N14.0115P30.9733As74.9251Sb121.883Bi209115Mc288
69Tm168.9101Md258
8O1616S32.0634Se78.9752Te127.684Po209116Lv293
70Yb173102No259
9F1917Cl35.4535Br79.953I126.985At210117Ts294
71Lu175103Lr262
2He4.00310Ne20.1818Ar39.9536Kr83.854Xe131.386Rn222118Og294
Barium
Ba
Xe 6s2
729°C
1637°C
3.5g cm⁻³
Silvery-white reactive element, belonging to group 2 of the periodic table. Soluble Barium compounds are extremely poisonous. Identified in 1774 by Karl Scheele and extracted in 1808 by Humphry Davy.
196pm
161pm
149pm
100101102103104105log(kJ mol⁻¹)
0, +2
Barite, or Barium sulfate (BaSO₄), when ground is used as a filter for rubber, plastics, and resins. It is insoluable in water and so is used in X-rays of the digestive system. Barium nitrate, Ba(NO₃)₂, burns brilliant green and is used in fireworks.
13.954kJ mol⁻¹
0.89PAULING
39cm³ mol⁻¹
222pm
198pm
268pm
Found in barytine (BaSO₄) and witherite (BaCO₃), never found in pure form due to its reactivity. Must be stored under kerosene to remain pure.
Discovered in 1808 by Sir Humphrey Davy in England
Greek: barys (heavy or dense).
7440-39-3
425mg kg⁻¹
0.013mg dm⁻³
142kJ mol⁻¹
7.66kJ mol⁻¹
179.1kJ mol⁻¹
0.192J (g ⋅ K)⁻¹
IsotopeAbundanceHalf Life
130Ba0.11%4.000x10²¹y
132Ba0.1%-
134Ba2.42%-
135Ba6.59%-
136Ba7.85%-
137Ba11.23%-
138Ba71.7%-
133Ba--

https://reuben.science

https://github.com/reubn/tabla


Using data from mendeleev.
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