Periodic law states that elements show a A. repetition of their physical and chemical properties when arranged according to increased atomic number

B. repetition of their physical and chemical properties when arranged according to increased atomic mass

C. repetition of their physical and chemical properties when arranged according to increased atomic size

D. repetition of their physical and chemical properties when arranged according to increased atomic radius

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.

Element before carbon on the periodic table

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium