Consider the following statements:

Heavy metals may be defined as elements with an atomic number larger than 30.

Heavy metals like Cobalt, copper, zinc, and manganese are required in trace amount in human body.

Which of the statements given above is/are correct?

Question

Heavy metals may be defined as elements with an atomic number larger than 20 and an atomic density greater than 5 g cm-³that must possess metal-like characteristics. Example: arsenic, cadmium, chromium, copper, lead, manganese, mercury, nickel, uranium etc.
There are some essential heavy metals which the human body requires in trace amounts such as Cobalt, copper, zinc, and manganese but in the excessive amount, it can be detrimental to health. The heavy metals found in drinking water such as lead, mercury, arsenic, and cadmium have no beneficial effects on our body. In fact, their accumulation inside the body can cause severe health problems.

GKToday Admin · Accepted Answer

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Heavy metals may be defined as elements with an atomic number larger than 20 and an atomic density greater than 5 g cm-³that must possess metal-like characteristics. Example: arsenic, cadmium, chromium, copper, lead, manganese, mercury, nickel, uranium etc.
There are some essential heavy metals which the human body requires in trace amounts such as Cobalt, copper, zinc, and manganese but in the excessive amount, it can be detrimental to health. The heavy metals found in drinking water such as lead, mercury, arsenic, and cadmium have no beneficial effects on our body. In fact, their accumulation inside the body can cause severe health problems.

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