In the Modern Periodic Table, calcium (a | Class 10 Science Chapter Periodic Classification of Element, Periodic Classification of Element NCERT Solutions

Question:

In the Modern Periodic Table, calcium (atomic number 20) is surrounded by elements with atomic numbers 12, 19, 21 and 38. Which of these have physical and chemical properties resembling calcium?

Answer:

The element with atomic number 12 has the same chemical properties as that of calcium. This is because both of them have the same number of valence electrons (2).

Calcium electronic is - 2,8,2

Element having atomic number 12 have - 2,8,2.


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Welcome to the NCERT Solutions for Class 10 Science - Chapter . This page offers a step-by-step solution to the specific question from Excercise 4 , Question 9: In the Modern Periodic Table, calcium (atomic number 20) is surrounded by elements with atomic numbe....