With these two. in the nucleus of an atom, there are 20 protons and 21 neutrons. what are the atomic number and mass number of this isotope? study the electron dot diagrams. which two elements are most likely to react and form a compound? what type of compound are they likely to form? here's the link for the second one.

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.