Проверка дз

Проверка дз

9th Grade

6 Qs

quiz-placeholder

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Проверка дз

Проверка дз

Assessment

Quiz

Chemistry

9th Grade

Practice Problem

Easy

Created by

Maria Azyavchikova

Used 1+ times

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6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Количество электронов в атоме железа?

26

55

56

4

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Атом какого элемента имеет слоение электронных слоев согласно схеме: 2е,8е,5е

N

P

As

H

3.

FILL IN THE BLANK QUESTION

1 min • 2 pts

Атом какого химического элемента на втором электронном слое имеет 4 электрона (укажите химический символ)

4.

DRAW QUESTION

3 mins • 1 pt

Изобразите схему строения атома бора

Media Image

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Количество валентных электронов в атоме магния:

6.

MULTIPLE SELECT QUESTION

45 sec • 2 pts

К какому(им) атому(ам) нельзя применить понятие "валентные электроны"?

Ne

Be

K

Li

He

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