PDF chapter test TRY NOW
1. If the electronegativity difference between two bonded atoms in a molecule is greater than 1.7, the nature of bonding is __________.
2. __________ is the longest period in the periodical table.
3. __________ forms the basis of modern periodic table.
4. If the distance between two Cl atoms in Cl2 molecule is 1.98Å, then the radius of Cl atom is__________ .
5. Among the given species A– ,A+, and A, the smallest one in size is__________.
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