Explanation:
Chemical properties of barium - Health effects of barium - Environmental effects of barium
- Atomic number 56
- Electronegativity according to Pauling 0.9
- Density 3.5 g.cm-3 at 20°C
- Melting point 725 °C
- Boiling point 1640 °
- Properties Of Nickel
- Nickel is a silvery-white, hard, malleable, and ductile metal.
- It is a good conductor of heat and electricity.
- It is bivalent, that is it has a valency of two.
- The metal dissolves slowly in dilute acids.
- Its melting point is 1453 °C and its boiling point is 2913 °C.
