Calcium is an Element which is Denoted by the Symbol Ca. The Atomic Number of Calcium is 20. Learn about the Important Properties and Uses of Calcium Here.
In order to write the electron configuration of an element, it is necessary to know how many electrons are present in the element as well as the order in which electron shells fill up. Calcium has an atomic number of 20, which means that in elemental calcium atoms there are 20 electrons....
Element Properties atomic number20 atomic weight40.078 melting point842 °C (1,548 °F) boiling point1,484 °C (2,703 °F) specific gravity1.55 (20 °C, or 68 °F) oxidation state+2 electron configuration1s22s22p63s23p64s2 Occurrence, properties, and uses ...
calcium (kălˈsēəm) [Lat.,=lime], metallic chemical element; symbol Ca; at. no. 20; at. wt. 40.078; m.p. about 839℃; b.p. 1,484℃; sp. gr. 1.55 at 20℃; valence +2. Calcium is a malleable, ductile, silver-white, relatively soft metal with face-centered, cubic cr...
Calcium is silver to gray solid metal that develops a pale yellow tint. It is element atomic number 20 on the periodic table with the symbol Ca. Unlike most transition metals, calcium and its compounds exhibit a low toxicity. The element is essential for human nutrition. Take a look at cal...
but this has never been observed. The lightest and most common isotope 40Ca is also doubly magic and could undergo double electron capture to 40Ar, but this has likewise never been observed. Calcium is the only element to have two primordial doubly magic isotopes. The experimental lower limits...
Calcium: The Element and its Ion, Ca2+ Calcium, atomic number 20 lies in group 2 in the third row of the periodic table and before the first row of transition metals. It resides below magnesium and above strontium and then barium in its group. It has low ionization potentials, giving a...
Calcium metal does not occur free in nature; however, in the form of numerous compounds, it is the fifth most abundant element, constituting 3.63% of the earth's crust. Calcium is mainly used for improvement of steel; as a reducing agent for many reactive, less common metals; to remove ...
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CAS Registry: 7440-70-2 Calcium atoms have 20 electrons and theshell structureis 2.8.8.2. Theground state electronic configuration of neutral calcium is[Ar].4s2and theterm symbol of calciumis1S0. Calcium: descriptionYour user agent does not support the HTML5 Audio element.🔊 ...