NEET Chemistry: Structure of Atom — MCQ Test 13

Q6. Which of the following represents the electronic configuration of an element with atomic number 16?

Q7. The ionization energy of a hydrogen atom from its ground state is \( 2.18 \times 10^{-18} \, \text{J} \). What is the energy required to ionize \( \text{He}^+ \) from its ground state?

Q8. A photon of frequency \( 6.0 \times 10^{14} \, \text{Hz} \) strikes a metal surface with a work function of \( 2.5 \times 10^{-19} \, \text{J} \). What is the kinetic energy of the ejected electron? (\( h = 6.626 \times 10^{-34} \, \text{J s} \))

Q9. The kinetic energy of an electron in the first orbit of \( \text{He}^+ \) is \( 4.36 \times 10^{-18} \, \text{J} \). What is its velocity? (\( m_e = 9.1 \times 10^{-31} \, \text{kg} \))

Q10. How many possible values of \( m_l \) are there for an electron with \( n = 3, l = 2 \)?

NEET Chemistry — Structure of Atom

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Which of the following species has the same number of electrons as \( \text{Na}^+ \) (atomic number 11)?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Chemistry preparation, focusing specifically on the chapter Structure of Atom. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Following, Electrons, Velocity, Electron, Represented, and Spectral.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. Which of the following species has the same number of electrons as \( \text{Na}^+ \) (atomic number 11)?

  • A. \( \text{K}^+ \)
  • B. \( \text{Mg}^{2+} \)
  • C. \( \text{Ca}^{2+} \)
  • D. \( \text{S}^{2-} \)

Q2. What is the velocity of an electron in the third orbit of \( \text{He}^+ \)? (\( v_1 \) for H = \( 2.19 \times 10^6 \, \text{m s}^{-1} \))

  • A. \( 7.3 \times 10^5 \, \text{m s}^{-1} \)
  • B. \( 2.19 \times 10^6 \, \text{m s}^{-1} \)
  • C. \( 1.46 \times 10^6 \, \text{m s}^{-1} \)
  • D. \( 4.38 \times 10^6 \, \text{m s}^{-1} \)

Q3. Which orbital is represented by the quantum numbers \( n = 3, l = 1 \)?

  • A. 3s
  • B. 3d
  • C. 3p
  • D. 4p

Q4. The number of spectral lines in the Brackett series when an electron falls from \( n = 7 \) to \( n = 4 \) in a hydrogen atom is:

  • A. 3
  • B. 6
  • C. 4
  • D. 5

Q5. How many orbitals in an atom can have the quantum numbers \( n = 5 \) and \( l = 3 \)?

  • A. 9
  • B. 7
  • C. 5
  • D. 11

+ 5 more questions in the actual test

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