Q68.Which of the following atoms has the lowest ionization potential? (1) 147 N (2) 13355 Cs (3) 4018Ar (4) 168 O
What This Question Tests
This question tests the understanding of periodic trends in ionization potential, identifying the element with the lowest value based on its position in the periodic table.
Concepts Tested
📚 NCERT Sections This Tests
12.4 — The Ground State Energy Of Hydrogen Atom Is –13.6 Ev. What Are The
Physics Class 12 · Chapter 12
12.4 The ground state energy of hydrogen atom is –13.6 eV. What are the kinetic and potential energies of the electron in this state?
12.7 — The Radius Of The Innermost Electron Orbit Of A Hydrogen Atom Is
Physics Class 12 · Chapter 12
12.7 The radius of the innermost electron orbit of a hydrogen atom is 5.3×10–11 m. What are the radii of the n = 2 and n =3 orbits?
12.5 — A Hydrogen Atom Initially In The Ground Level Absorbs A Photon,
Physics Class 12 · Chapter 12
12.5 A hydrogen atom initially in the ground level absorbs a photon, which excites it to the n = 4 level. Determine the wavelength and frequency of photon.
📋 Question Details
- Chapter
- Periodic Table & Properties
- Topic
- Ionization enthalpy (potential)
- Year
- 2003
- Shift
- Unknown
- Q Number
- Q68
- Type
- Conceptual
- NCERT Ref
- Class 11 Chemistry Ch 3: Classification of Elements and Periodicity in Properties
More from this Chapter
Q87.Which one of the following substances has the highest proton affinity? (1) H2 S (2) NH3 (3) PH3 (4) H2O
Q82.Which one the following sets of ions represents the collection of isoelectronic species? (1) K+, Ca2+, Sc3+, Cl− (2) Na+, Mg2+, Al3+, Cl− (3) K+, Cl−, Mg2+, Sc3+ (4) Na+, Ca2+, Sc3+, F−
Q83.Which one the following ions has the highest value of ionic radius? (1) Li+ (2) F− (3) O2− (4) B3+
Q94.The formation of the oxide ion O2−(g) requires first an exothermic and then an endothermic step as shown below O(g) + e−O−(g)ΔH∘= −142kJmol−1 O−(g) + e−O2−(g)ΔH∘= 844kJmol−1 (1) Oxygen is more electronegative (2) O− ion has comparatively larger size than oxygen atom (3) O− ion will tend to resist the addition of another (4) Oxygen has high electron affinity electron