Barium-135 isotope (Ba-135 isotope, 135Ba isotope)
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Property | BARIUM-135 |
---|---|
Neutron Number (N) | 79 |
Atomic Number / Proton Number (Z) | 56 |
Mass Number / Nucleon Number (A) | 135 |
Natural Abundance (%) | 0.0659 |
Atomic Mass (Da) | 134.905688 |
Relative Isotopic Mass | 134.905688 |
Spin | 1.5 |
Quadrupole Moment | 0.16 |
g-factor (g value) | 0.55863 |
Half-life | ― |
Group | 2 |
Period | 6 |
Electron Configuration Block | s |
Melting Point (K) | 1002 |
Boiling Point (K) | 1910 |
Specific Heat | 0.192 |
Heat of Formation | 179.1 |
Thermal Conductivity | ― |
Dipole Polarizability | 272 |
Electron Affinity (kJ/mole) | 0.14462 |
Electronegativity (Pauling scale) | 0.89 |
Atomic Radius (pm) | 222 |
Covalent Radius (pm) | 215 |
VDW Radius (pm) | 307 |
Lattice Constant | 5.02 |
Crystal Structure | BCC |
Jmol color | #00c900 |
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.
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.