MCQ
Which is incorrect?
- AIn Mendeleev's periodic table third period elements are bridge elements
- BIn long form of periodic table total group $= 18$
- ✓In modern periodic table $III$ $B$ is $13^{th}$ group
- DAll are incorrect
✓
Answer
Correct option: C.
In modern periodic table $III$ $B$ is $13^{th}$ group
c
$III$ $B$ is $3^{rd}$ $gp$.,
$III$ $B$ is $3^{rd}$ $gp$.,
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