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Question 1
Who invented the periodic table?
Question 2
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 3
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 4
Which among the following elements has highest electronegativity?
Question 5
Which of the following elements has the lowest melting point?
Question 6
Radioactive elements emit:
Question 7
When we goes from left to right in periodic table, Electro-negativity ____ and when we goes from top to bottom it _____.
Question 8
What is the common characteristic of the elements of the same group in the periodic table?
Question 9
Which elements groups are known as ferromagnetic metals?
Question 10
Which of these elements in periodic table are also called semi-metals?
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Mar 7ESE & GATE EC
