Q8 of 31 Page 198

Elements in a group generally possess similar properties, but elements along a period have different properties. How do you explain this statement?

Elements along a period possess different properties because:


i. As we from left to right along a period, elements increases by one-unit charge between any two successive elements with increase in atomic number.


ii. Thus, the electronic configuration of valence shell of any element in a given period is not same.


iii. As a result, elements along a period have different properties.


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