| Period 1 Element |
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Information AboutPeriod 1 Element |
| CATEGORIES ABOUT PERIOD 1 ELEMENT | |
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Period one is much shorter than any other row in the table, and contains only two elements, Hydrogen and Helium . In a Quantum Mechanical description of atomic structure, this period corresponds to the filling of the 1s orbital. Period 1 elements do not obey the " Octet Rule ". These are: |
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