ICSE Class 9 - Modern Periodic Table Videos
- merits of dobereiner
- why did mendeleevs leave some gaps in his periodic table of elements? Explain your answer with an example
- lithium sodium and potassium elements for put in one group on the basis of their similar properties what were their similar properties
- what is the need for classification of elements?
- C is in Group 4. So, the hydride will be _____.
- What is the f block known as ?
- what are alkaline earth metal
- How many period and groups are there in modern periodic table
- send me vallencies of all elements
- Moving down in the second group number of valence electrons.........
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