Percentage of which metal in nature is Maximum by weight
Answers
Explanation:
Heavy metals are naturally occurring elements that have a high atomic weight and a density 5 times greater than that of water. Their multiple industrial, domestic, agricultural, medical and technological applications have led to their wide distribution in the environment; raising concerns over their potential effects on human health and the environment. Their toxicity depends on several factors including the dose, route of exposure, and chemical species, as well as the age, gender, genetics, and nutritional status of exposed individuals. Because of their high degree of toxicity, arsenic, cadmium, chromium, lead, and mercury rank among the priority metals that are of public health significance. These metallic elements are considered systemic toxicants that are known to induce multiple organ damage, even at lower levels of exposure. They are also classified as human carcinogens (known or probable) according to the U.S. Environmental Protection Agency, and the International Agency for Research on Cancer. This review provides an analysis of their environmental occurrence, production and use, potential for human exposure, and molecular mechanisms of toxicity, genotoxicity, and carcinogenicity.
Plutonium is the heaviest metal in the periodic table based on its weight.
Explanation:
Plutonium has the maximal relative atomic mass value of 244 and an atomic number of 94.
Some of the other heavy metals include Uranium (relative atomic mass of 238, atomic number 92).
On the other hand, oganesson (relative atomic mass of 294, atomic number of 118) is seen to be the most heaviest metal in the periodic table, however, it was synthetically prepared.