Hydrogen could not be placed at a definite place in periodic table
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Explanation:
- this is so because hydrogen is matched with both the 1st group elements and the 17th group elements in terms of properties.
- it contains 1 electron in its outermost shell . its outermost electron rests in s orbital. it shows reducing properties. so it is similar to 1st group elements.
- it gets stable in diatomic form. it is a non metal . so it shows similar properties with 17th group elements.
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