Уровни энергии электрона в атоме водорода задаются формулой Е0=-(13.6)/n2 эВ, где n = 1, 2, 3, ... . При переходе атома из состояния Е2 в состояние Е1

1. There are a few pens on the table. 2. There are some flowerpots on the window-sill. 3. There are some cats in the flat. 4. There are a lot of people at the railway station. 5. There are some water in the vase. 6. There are some potatoes in the pot. 7. There are some cushions on the bed. 8. There are lots of pictures on the wall. 9. There are some books in the brief-case. 10. There are a lot of stools in the kitchen.
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