Periodic Table

Dobereiner arranged elements in increasing order of of
Atomic weight
Atomic number
Group 1 ,2 ,13 and 17 element are called
Normal Element
Transition element
Non metals are placed at the upper right corner of the periodic table .
True
False
0 Group elements are called
Normal Element
Inert gases
Li belongs to ____petiod having ____shells
3,2
2,3
Atomic number is equal to the
Number of proton
Number of electron
Transition in the periodic table is seen from non metallic character to metallic character
True
False
As we move from top to bottom in a period the number of shells increases
Yes
No
Atomic number of magnesium is 24
True
False
Period 1 is the shortest of all consisting of ____elements .
1
2
0
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