Предмет: Химия, автор: apelsinka1998

сколько электронов присоединяют атомы неметаллов,имеющие на внешнем уровне пять,шесть,семь электронов?какова их степень окисления

Ответы

Автор ответа: chemestrys
0
Неметаллы, имеющие на внешнем уровне 5 электронов присоединяют 3 электрона. Степень окисления -3. Например P (фосфор).
Неметаллы, имеющие на внешнем уровне 6 электронов присоединяют 2 электрона. Степень окисления -2. Например S (сера).
Неметаллы, имеющие на внешнем уровне 7 электронов присоединяют 1 электрон. Степень окисления -1 (или просто -). Например Cl (хлор).
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1 An accountant is
a. someone whose job is to care for sick and injured people
2 A journalist is
b. someone whose job is to wash, cut, colour people's hair
3 A hairdresser is
c. someone whose job is to design, build, or repair machines, engines,
4 A lawyer is
roads, bridges
5 A receptionist is
d. someone who knows the laws and works in the court
6 An architect is
e. someone whose job is to keep the financial records of a business or
7 A nurse is
a person
8 A dentist is
f. someone who examines teeth
9 A pilot is
g. someone who studies the human mind and behaviour
10 A psychologist is
h. someone who flies an aircraft
11 A zoologist is
i. someone who studies animals and how they behave
12 An engineer is
j. someone who collects and writes news and articles for newspapers,
magazines, radio, and television
k. someone who works in a hotel or an office building, answering the
telephone and dealing
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