Chemical properties – Calcium symbol, electronic configuration, density


Description:

Calcium is a alkaline earth metal, and is the fifth most abundant element by mass in the Earth’s crust. It is essential for living organisms, particularly in cell physiology, where movement of the calcium ion Ca2+ into and out of the cytoplasm functions as a signal for many cellular processes. As a major material used in mineralization of bones and shells, calcium is the most abundant metal by mass in many animals. It is uesd as a reducing agent in the extraction of other metals, such as uranium, zirconium, and thorium, as a deoxidizer, desulfurizer, or decarbonizer for various ferrous and nonferrous alloys, and as an alloying agent used in the production of aluminium, beryllium, copper, lead, and magnesium alloys. It is also used in the making of cements and mortars to be used in construction and in the making of cheese, where calcium ions influence the activity of rennin in bringing about the coagulation of milk.

Chemical Properties.

Appearance Silvery White Solid
Atomic Number 20
Atomic Weight 40.078 g/mol
Block s
Boiling Point 1484 °C
CAS Number 7440-70-2
Class 4.3
Crystal Structure Face-centered cubic
Density 1.55 g/cm3
EINECS Number 231-179-5
Electron Configuration 1s2 2s2 2p6 3s2 3p6 4s2
Group 2
Ionization Energy 589.8 KJ/mol
Melting Point 842 °C
NFPA 704 H-3,F-3,R-2,C-NA
Oxidation State +2,+1
PG 2
Period 4
Symbol Ca

Calcium producers/suppliers – http://www.worldofchemicals.com/chemicals/manufacturers/fl/calcium.html

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Chemical properties – Potassium symbol, electronic configuration, density


Description:

Potassium is an alkali metal. Potassium ions are an essential component of plant nutrition and are found in most soil types. They are used as a fertilizer in agriculture, horticulture, and hydroponic culture in the form of chloride, sulfate, or nitrate. The potassium cation is a nutrient necessary for human life and health. Potassium chloride is used as a substitute for table salt by those seeking to reduce sodium intake so as to control hypertension. Vapor of pure potassium is used in several types of magnetometers. It can also be used in reactive distillation.

Chemical Properties.

Appearance Silvery gray metal
Atomic Number 19
Atomic Weight 39.0983 g/mol
Block s
Boiling Point 759 °C
CAS Number 7440-09-7
Class 4.3
Crystal Structure Body-centered cubic
Density 0.862 g/cm3
EINECS Number 231-119-8
Electron Configuration 1s2 2s2 2p6 3s2 3p6 4s1
Group 1
Ionization Energy 418.8 KJ/mol
Melting Point 63.38 °C
NFPA 704 H-3,F-3,R-2,C-W
Oxidation State 1
PG 1
Period 4
RTECS Number TS8050000
Symbol K

Potassium producers/suppliers – http://www.worldofchemicals.com/chemicals/manufacturers/fl/potassium.html