Structure of Atom Quiz - CBSE Class 11 Science
Free practice quiz: Structure of Atom (CBSE Class 11 Science). 29 multiple-choice questions with answers and explanations. Play online, no sign-up needed.
Play all 29 questions freeSample questions
Which subatomic particle carries a positive charge?
- Electron
- Neutron
- Proton
- Photon
Show answer
Answer: C. Proton
Protons are positively charged subatomic particles found in the nucleus of an atom.
What is the name of the central part of an atom?
- Electron cloud
- Orbital
- Nucleus
- Shell
Show answer
Answer: C. Nucleus
The nucleus is the central part of an atom containing protons and neutrons.
What are the different types of orbitals?
- s, p, d, f
- s, p, d
- s, p
- Only s orbital
Show answer
Answer: A. s, p, d, f
The four types of atomic orbitals are s, p, d, and f, each having a different shape and orientation.
What is the relationship between wavelength and frequency of electromagnetic radiation?
- Directly proportional
- Inversely proportional
- No relationship
- Exponentially related
Show answer
Answer: B. Inversely proportional
The wavelength and frequency of electromagnetic radiation are inversely proportional (c = λν, where c is the speed of light).
What is the spin quantum number (s) and what values can it have?
- It describes the shape of the orbital, and can have values of 0, 1, 2...
- It describes the orientation of the orbital, and can have values of -1, 0, +1...
- It describes the spin of the electron, and can have values of +1/2 or -1/2.
- It describes the energy level, and can have values of 1, 2, 3...
Show answer
Answer: C. It describes the spin of the electron, and can have values of +1/2 or -1/2.
The spin quantum number (s) describes the intrinsic angular momentum of the electron, and can have values of +1/2 or -1/2, representing spin up or spin down.