The atoms of group b elements electrons when they form ions. a. gain b. lose c. cannot be determined d. either gain or lose
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How can you use chemical equations to predict the products of the reaction you can carry out?

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.

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)