Zinc,selenium,cobalt,and iodine are all
A)trace elements.
B)compounds.
C)radioactive.
D)isotopes of hydrogen.

Question

Quizplus · Accepted Answer

Zinc, selenium, cobalt, and iodine are all trace elements, meaning they are required by the body in small amounts for various physiological processes. Compounds are formed by the combination of two or more elements, and while zinc, selenium, cobalt, and iodine may form compounds, they are not compounds themselves. They are also not radioactive and not isotopes of hydrogen.

Zinc,selenium,cobalt,and Iodine Are All