Sodium was first isolated by Humphry Davy in 1807 by the electrolysis of sodium hydroxide. Among many other useful sodium compounds, sodium hydroxide (lye) is used in soap …

Dec 4, 2025 · 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 …

Sodium is essential to all living things, and humans have known this since prehistoric times. Our bodies contain about 100 grams, but we are constantly losing sodium in different ways so we …

Jul 18, 2025 · Hyponatremia is the term used when your blood sodium is too low. Learn about symptoms, causes and treatment of this potentially dangerous condition.

Sodium is the fourth most abundant element on earth, comprising about 2.6% of the earth's crust; it is the most abundant of the alkali group of metals. It is now obtained commercially by the …

Dec 19, 2025 · Sodium is a mineral that helps regulate blood pressure and nerve function. Most people get more sodium than they need, which may increase the risk of heart disease.

Jan 31, 2024 · Your body needs a small amount of sodium to work properly, but too much sodium is bad for your health. While sodium has many forms, most sodium we consume is from salt.

Apr 11, 2019 · Excess dietary sodium is a major contributor to hypertension, which is a leading preventable risk factor for cardiovascular disease. Randomized controlled studies …

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. The free metal does not occur in nature and …

Sep 13, 2025 · Table salt accounts for 90% of the sodium in the U.S. diet. Sodium helps balance fluid and electrolyte levels in the body. This balance can affect blood pressure and kidney and …