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Important Question Quiz on Periodic Table

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Question 1

Which law states that the atomic mass of the central element was the arithimetic mean of the atomic mass of the other 2 elements?

Question 2

In Modern Periodic Table, there are

Question 3

In Moseley’s periodic table elements are arranged according to-

Question 4

Which elements in the periodic table are chemically inactive?

Question 5

Which of following is the atomic number which falls in the 2nd group and the 4th period of periodic table?

Question 6

In a periodic table, while moving from left to right in a period, number of  ________ remains same.

Question 7

In the periodic table of elements, on moving from left to right across a period, the atomic radius_______.

Question 8

The modern periodic table consists of 18 groups and 7 periods. What is the atomic number of the element placed in the 1st group and the 4th period?

Question 9

The modern periodic table consists of 18 groups and 7 periods. What is the atomic number of element which is kept in 4th row and 4th period?

Question 10

Which groups of periodic table are known as s-block elements?

Question 11

Which block elements of periodic table are also known as inner transition elements?

Question 12

Which metal is the heaviest in periodic table among the following?

Question 13

Which of these elements in periodic table are also called semi-metals?

Question 14

Electronic configuration of an element is 1s2, 2s2, 2p6, 3s2, 3p6, 4s1, 3d5. The block and period of the element in periodic table will be

Question 15

Modern periodic law had been given by ____.
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Mar 12SSC & Railway