In the Modem 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?
Answers
Answered by
1
I think magnesium has physical properties and strontium has chemical properties
Answered by
8
Answer:
We know that the calcium’s electronic configuration is 2,8,8,2.
The other elements have an electronic configuration as under
The element with atomic number 12 is 2, 8, and 2
The Element of atomic number 19 is 2, 8, 8, and 1.
The Element of atomic number 21 is 2, 8, 8, and 3
The element of atomic number 38 is 2, 8, 18, 8, and 2.
Therefore the atomic number 12 and 38 resembles the chemical and physical properties similar to calcium as the valence electron is the same.
Similar questions