What is a property of potassium?

Answer 1

being seen. Larger pieces of potassium burn with a lilac flame. The equation for the formation of the peroxide is just like the sodium one above: Atomic number 19 Atomic mass39.0983 g.mol -1 Electro negativity according to Pauling 0.8 Density 0.86 g.cm -3 at 0 °C Melting point 63.2 °C Boiling point 760 °C Vander Waals radius 0.235 nm Ionic radius 0.133 (+1) Isotopes 5 Electronic shell [ Ar ] 4s1 Energy of first ionisation 418.6 kJ.mol -1 Discovered by Sir Davy in 1808

Answer 2

Potassium is a Group 1, Alkali metal.

Physical Properties - Potassium, in it's pure form, is silvery-white with a dull sheen, and is very soft. It's important to note, however, that potassium is very reactive with air and water. It is for this reason that it is not found in its elemental form in nature. It can be found bonded to other compounds or in minerals in:

Nitre, or Saltpeter, the mineral form of Potassium Nitrate (KNO3)

Silvite, the mineral form of Potassium Chloride (KCl)

Feldspar, the mineral which make up as much as 60% of the Earth's crust.

It is similar in appearance to Sodium (which is also not found in pure form in nature).

Chemical Properties - Potassium (Chemical Symbol K, from Latin kalium) oxidizes very quickly, and reacts with water very violently to form Potassium Hydroxide, via the following reaction:

K + H2O -> H2 + KOH

This reaction is exothermic enough to cause the hydrogen gas created to combust. In order to keep potassium from reacting with the air, or the traces of water in the air, it is often stored in a reducing medium, such as kerosene.

Answer 3

Some properties of potassium carbonate are:
- density: 2,43 g/cm3
- melting point: 891 C
- soluble in water
- insoluble in ethanol and acetone
- deliquescent
- form alkaline solution s

Answer 4

Some properties of potassium:
- K is extremely reactive
- density: 0,862 g/cm3
- melting point: 63,5 oC
- boiling point: 759 oC
- thermal conductivity: 102,5 W/m.K

Answer 5

reacts well when combine or reacted with water

Answer 6

Potassium reacts violently and swiftly water.

Answer 7

Soft silvery- white metal

Highly reactive in the air

very malleable

Low melting point

Answer 8

Physical properties: shiny, metallic, soft. Chemical properties: very reactive, 1 valence electron.

Answer 9

Reacts well when combined with water.