Выберите несколько вариантов ответа Щелочные металлы характеризуют следующие признаки
1) Увеличивается число неспаренных электронов в атоме.
2) Восстановительные свойства усиливаются при уменьшении заряда ядра.
3) Высшие гидроксиды проявляют свойства сильных оснований.
4) Внешний электронный слой содержит 1ē.
5) Электроотрицательность увеличивается с увеличением атомной массы.
2. Look at the kitten! It is jumping about the room.
3. While he was painting the wall, he fell off the staircase and hurt his arm.
4. If you mix the brown and white colours, you will get beige.
5. I will talk to him about it when I meet him.
6. My son will be still doing his homework (lessons) when I come home.
7. We hope he will take part in this work.
8. He was preparing for exams the whole week.
9. She was returning home from work at 6 p.m. yesterday.
10. When I came home, nobody was there.
11. We were having a rest in our room when father came back from work.
12. I came into (entered) the kitchen and saw my wife cooking lunch (dinner).
13. She will call you up as soon as she receives (gets) the necessary information.
14. Do not come at 2 o'clock tomorrow: he will be busy at that time and won't help you.
15. I think we will go for a walk when the rain dies down.