the number of transition elements belonging to the 4th4th period having an atomic radii lesser than Sc
Question
the number of transition elements belonging to the 4th4th period having an atomic radii lesser than Sc
Solution
The transition elements in the 4th period of the periodic table are Scandium (Sc), Titanium (Ti), Vanadium (V), Chromium (Cr), Manganese (Mn), Iron (Fe), Cobalt (Co), Nickel (Ni), Copper (Cu), and Zinc (Zn).
The atomic radius of Scandium (Sc) is 160 pm.
Now, let's compare this with the atomic radii of the other transition elements in the 4th period:
- Titanium (Ti): 147 pm
- Vanadium (V): 134 pm
- Chromium (Cr): 130 pm
- Manganese (Mn): 140 pm
- Iron (Fe): 140 pm
- Cobalt (Co): 135 pm
- Nickel (Ni): 135 pm
- Copper (Cu): 135 pm
- Zinc (Zn): 142 pm
From the above data, we can see that all the transition elements in the 4th period have an atomic radius lesser than Scandium (Sc). Therefore, the number of transition elements belonging to the 4th period having an atomic radii lesser than Sc is 9.
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