In which group of the long periodic table, elements of all three physical states – gaseous, liquid and solid are present? [1]
OR
To which group of the long periodic table do the alkali metals belong? [1]
WBBSE
Class X
Physical Science
Periodic Table
01 Mark
2022
Group 17 (Halogens) of the long periodic table contains elements in all three physical states: gaseous (e.g., F, Cl), liquid (e.g., Br), and solid (e.g., I).
OR
The alkali metals belong to Group 1 of the long periodic table.
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