neet nta result 2021
Seventh Period is …
1. Small period
2. Long period
3. Incomplete
4. None
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Sixth period has
1. 18 elements
2.8 elements
3.32 elements
4. In complete
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Fourth and Fifth periods consist of …. elements each
1.2
2.8
3.18
4. 28
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Each period in the periodic table ends with an
1. Halogen
2. Chalkogen
3. Inert gas element
4. None of these
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