give scientific reasons : the third period contains only 8 elements even though the capacity of the third shell is 18.
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hey mate ur ans is as follow:
1.the no. of elements in the first 3 periods depends on the electron capacity of the shells and the law of electron octet.
2. the electron capacity of 3rd shell is 18.so the 3rd period should actually contain 18 elements but it contains only 8 elements due to the law of octet......
may be this help u...
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