Difference between Heavy metals and Weak metals.
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The term heavy metal refers to any metallic chemical element that has a relatively high density and is toxic or poisonous at low concentrations. ... As trace elements, some heavy metals (e.g. copper, selenium, zinc) are essential to maintain the metabolism of the human body.
there's no word weak metals.
ayushinair5555:
Please Can you tell me What is Weak metals
Rayner-Canham and Overton use the term chemically weak metals to refer to the metals close to the metal-nonmetal borderline. ... The nine chemically weak metals identified by them are beryllium, magnesium, aluminium, gallium, tin, lead, antimony, bismuth, and polonium.
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Commonly, a density of at least 5 g cm−3 is used to define a heavy metal and to differentiate it from other, “light” metals. Other, broader definitions for “heavy metals” require an atomic mass higher than 23 or an atomic number exceeding 20; these definitions are highly error prone and confusing.
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