Elemental mercury is a pure substance and its own element on the periodic table of elements. It can be combined with other elements to form compounds of various natures, such as mercury oxide. Mercury occurs naturally, b...
According to the Encyclopedia Britannica, ammonia is a pure substance because it is a compound of the elements nitrogen and hydrogen. The two elements are joined chemically, so it cannot be considered a mixture.
Gasoline is a homogeneous mixture made from processing or refining crude oils. A homogeneous mixture consists of combinations of different substances. However, a homogeneous mixture also has uniform composition and prope...
A pure substance that cannot be broken down is an element. Atoms of the same element are identical physically and chemically. An element's atoms are physically and chemically different from those of another element.
Mercury belongs to the group of elements called transition metals, and it is placed in the d-block in the periodic table of elements. Mercury is in group 12 and period 6.
An element's metallic properties refer to its propensity to behave like the elements that are classified as metals in the periodic table. This depends on the set of chemical properties commonly associated with the metall...
On the periodic table of elements, the symbol Mn stands for the element manganese. Manganese is a mineral element that is both potentially toxic and nutritionally essential to organisms.