"Each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei" and is radioactive is
A. An isotope
B. A radioisotope
C. A nuclide
D. A radionuclide
E. None of the above

Effect of rotenone and antimycin a on electron transfer rotenone, a toxic natural product from plants, strongly inhibits nadh dehydrogenase of insect and fish mitochondria. antimycin a, a toxic antibiotic, strongly inhibits the oxidation of ubiquinol. (a) explain why rotenone ingestion is lethal to some insect and fish species. (b) explain why antimycin a is a poison. (c) given that rotenone and antimycin a are equally effective in blocking their respective sites in the electron-transfer chain, which would be a more potent poison? explain.

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?

What three things does a balanced equation show you?