namely Hydrogen, Oxygen, Sodium, Chlorine and some others
sodium and chlorine
yes
the main element extracted was radium
No, it is a mixture of a number of different compound. Water itself is a compound. Ocean water is not pure water though.
sodium chloride
Ocean water is a mixture.
Calcium.
Einsteinium is not extracted from the earth, it is an artificial element.
Sodium chloride (salt) is the most commonly extracted element from seawater. Other elements that can be extracted include magnesium, calcium, and potassium.
The element Sodium (Na) was first extracted in 1807. It is very soft and burns on contact with water.
No, it is the most common dissolved ion in the ocean. The most common element by mass is oxygen as the ocean is still mostly water.
Sodium is an element that can be obtained from sea water. It is present in the form of sodium chloride, which is commonly known as table salt, and can be extracted through processes like electrolysis.