If by vital you mean most reactive, then the metal francium, Fr, is the most reactive element.
No. If you burn an element, you will turn it into a compound (most commonly [element burnt] oxide). Which will not be an element.
milk is a mixtureIt's a mixture that contains compounds and elements.For instance iron is an element in most milk, and fats are a compound.
Hydrogen fluoride is the most reactive compound in this group (not element).
When you mix an element with a compound, a chemical reaction may occur. The element may react with the compound to form a new compound or may remain unchanged depending on the reactivity of the elements involved.
An element is a part of a compound.
The most vital element in crime detection and criminal investigation is the human element.
It is vital for life and male ejaculate has traces of the element.
An element.
The more or most electronegative element in the compound usually appears last.
No. If you burn an element, you will turn it into a compound (most commonly [element burnt] oxide). Which will not be an element.
Oxygen, hydrogen, halogens
element. But most elements can also be compounds. For example, oxygen is the name of an element, but two oxygens bonded together are also called oxygen, and are a compound.
The element that forms the cation (positive ion) comes first in the formula for an ionic compound.
no, it is most commonly found as a compound
Oxygen, hydrogen, halogens
Very probable this element is oxygen.
milk is a mixtureIt's a mixture that contains compounds and elements.For instance iron is an element in most milk, and fats are a compound.