Question

please answer this question ​

Answer 1

Explanation:

METALS-- Among the metals that are currently known to be essential for normal biological functions in humans are sodium (Na), potassium (K), magnesium (Mg), and calcium (Ca) that belong to main group of elements, and vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn)

NON-METALS--Living organisms are composed almost entirely of the nonmetals hydrogen, oxygen, carbon, and nitrogen.