Class 11ChemistryClassification of Elements and Periodicity in PropertiesExtended or long form of periodic table
MediumProvide the name,symbol,and atomic number of the first and last elements for each period from $1$ to $7$ of the periodic table.
(N/A)
| Period | First Element $(Name/Symbol, Z)$ and Last Element $(Name/Symbol, Z)$ |
| $1$ | $Hydrogen (H), 1$; $Helium (He), 2$ |
| $2$ | $Lithium (Li), 3$; $Neon (Ne), 10$ |
| $3$ | $Sodium (Na), 11$; $Argon (Ar), 18$ |
| $4$ | $Potassium (K), 19$; $Krypton (Kr), 36$ |
| $5$ | $Rubidium (Rb), 37$; $Xenon (Xe), 54$ |
| $6$ | $Cesium (Cs), 55$; $Radon (Rn), 86$ |
| $7$ | $Francium (Fr), 87$; $Oganesson (Og), 118$ |
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