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Periodic Classification of Elements
easy
Lithium, sodium, potassium are all metals that react with water to liberate hydrogen gas. Is there any similarity in the atoms of these elements ?
Option A
Option B
Option C
Option D
Solution
Yes. The atoms of all the three elements lithium, sodium, and potassium have one electron in their outermost shells.
Standard 10
Science
Similar Questions
The position of three elements $A$, $B$ and $C$ in the Periodic Table are shown below
| Group $16$ | Group $17$ |
| – | – |
| – | $A$ |
| – | – |
| $B$ | $C$ |
$(a)$ Will $C$ be larger or smaller in size than $B$ ?
$(b) $ Which type of ion, cation or anion, will be formed by element $A$ ?
medium
