cutevictoria123
26.07.2019 •
Chemistry
Earth’s atmosphere, oceans, and continents began to form during the first several hundred years of (1 point) a. precambrian time b. the paleozoic c. the mesozoic era < - d. the cenozoic era 8. during the devonian period, animals that could live on land began to evolve. these animals still spent part of their lives in the water. what were these animals called? a. trilobites b. reptiles < - c. amphibians d. dinosaurs
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Ответ:
Ответ:
The ground state electron configuration of ground state gaseous neutral tin is [Kr]. 4d10. 5s2. 5p2 and the term symbol is 3P0.