Question: In which of the following is the radius of the first orbit minimum?
A H-atom
B Tritium atom
C Triply ionized beryllium
D Double ionized helium
Answer: Triply ionized beryllium
| Names of atom |
Atomic Number (Z) |
Formula of calculating radius |
Radius of the First Orbit |
| H-atom |
1 |
r= n2h2
ZKe2
Where ℏ ≈ 1.0545718×10−341.0545718×10−34 J·s
k (Coulomb’s constant) ≈ 8.988×1098.988×109 N·m²/C²
e ≈ 1.602×10−191.602×10−19 C |
Depends on the specific hydrogen atom configuration
|
| Tritium atom |
1 |
Depends on the specific tritium atom configuration |
| Triply ionized beryllium |
4 |
Minimum radius of the first orbit |
| Double ionized helium |
2 |
Larger than Triply ionized beryllium) |
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