summary of periodic table please.
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Hello!!
Here's your answer!!
I think you are asking about Modern periodic table!!
1. It contains 7 horizontal rows like that of Mendeleev series called Periods and 18 vertical columns called groups.
2. Elements with similar valance shell configuration are arranged in vertical columns reffed as to families or group.
3. Each period corresponds to the highest principal quantum number (n) of the elements in the period. The first period contains 2 elements. The subsequent periods Consist 8,8,18,18 & 32 elements respectively.
4. 14 elements of both sisth and seventh period i.e Lanthanoids and actinoids are placed in separate panels at the bottom of PT
I Hope that this is helpful for you!!
Here's your answer!!
I think you are asking about Modern periodic table!!
1. It contains 7 horizontal rows like that of Mendeleev series called Periods and 18 vertical columns called groups.
2. Elements with similar valance shell configuration are arranged in vertical columns reffed as to families or group.
3. Each period corresponds to the highest principal quantum number (n) of the elements in the period. The first period contains 2 elements. The subsequent periods Consist 8,8,18,18 & 32 elements respectively.
4. 14 elements of both sisth and seventh period i.e Lanthanoids and actinoids are placed in separate panels at the bottom of PT
I Hope that this is helpful for you!!
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