Chemistry 9 Chapter 2 Practice Test 5

ByMuhammad Zaman

Chemistry 9 Chapter 2 Practice Test 5

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Class 9 Chemistry

Chapter 2

Practice MCQs Test No 5

1 / 10

An element is placed in second period of periodic table and have six protons and six neutrons in its nucleus. The element is _____.

2 / 10

An element has two protons in its nucleus. The symbol of the element is _____.

3 / 10

Maximum number of electrons in d sub shell are:

4 / 10

Correct increasing order of energy of sub shell is:

5 / 10

According to 2n2 rule, L-Shell contains maximum___ electrons.

6 / 10

Atomic number of Na is 11. electronic configuration of the Na is _____.

7 / 10

Sub shells are also called as:

8 / 10

Electronic configuration for an element is as shown. 1s2, 2s2, 2p6, 3s2, 3p5 . Which of the following is correct regarding this electronic arrangement?

9 / 10

Energy released by the isotopes uranium – 235 is due to the process:

10 / 10

We can compare the activity of isotopes of carbon from skull and jaw bones of dead organism.

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