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Feb 27, 2024 · human nutrition. sodium deficiency. sodium-24. sodium-22. sodium (Na), chemical element of the alkali metal group (Group 1 [Ia]) of the periodic table. Sodium is a very soft silvery-white metal. Sodium is the most common alkali metal and the sixth most abundant element on Earth, comprising 2.8 percent of Earth’s crust.
- The Editors of Encyclopaedia Britannica
Sodium is a chemical element; it has symbol Na (from Neo-Latin natrium) and atomic number 11. It is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table. Its only stable isotope is 23 Na.
- silvery white metallic
- group 1: hydrogen and alkali metals
- 11
- period 3
Chemistry. Elements of the Periodic Table. Sodium. Physical Properties of Sodium. Sodium has a strong metallic lustre. In colour, it is very analogous to silver. It is soft at common temperatures that it can be shaped into leaves by the pressure of the fingers.
- Why is sodium stored under kerosene?Sodium is a very reactive metal which reacts with oxygen and moisture in the air if kept open. To avoid external contact, sodium is stored in keros...
- Why sodium is highly reactive?Sodium belongs to group 1 which is called alkali metal. Having one electron in the outermost shell causes low ionisation energy. Easy removal of el...
- Why is sodium soft?Sodium has weak metallic bonding in it. Delocalised electrons are not located over a single atom but over a number of atoms. The weak bonding resul...
Chemical Properties of Sodium. Chemical properties are all those properties that are visible only when any reaction is taking place between sodium and any other chemical substance. As per the periodic table, sodium is more reactive than lithium and less reactive than potassium. Oxygen
Chemical properties Sodium is a very active element. It combines with oxygen at room temperature. When heated, it combines very rapidly, burning with a brilliant golden-yellow flame. Sodium also reacts violently with water. (See accompanying sidebar.)
Nov 21, 2020 · The chemical symbol for Sodium is Na. Sodium is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table, because it has a single electron in its outer shell that it readily donates, creating a positively charged atom—the Na+ cation.
Hence, it’s a very active element. Furthermore, sodium will readily bond with any element that needs a single electron. Sodium has an electronegativity of 0.93 (Pauling Scale). Sodium’s electron configuration is 1s22s22p63s1. Other elements in the alkali metals family include: potassium, lithium, cesium, and rubidium.
