Atomic Units MCQ

Test your knowledge with important Atomic Units MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Atomic Units MCQs at Bissoy

• How many neutrons are there in the element Silver (Ag)?
  ক

  12

  খ

  47

  গ

  61

  ঘ

  72
• What is the general unit when labeling the mass of an atom?
  ক

  Inches

  খ

  Atomic mass units

  গ

  Grams

  ঘ

  Centimeters
• Where are valence electrons found?
  ক

  Outermost shell/orbital

  খ

  Any orbital

  গ

  Innermost shell/orbital

  ঘ

  Nucleus
• Which of the following subatomic particle has the highest mass?
  ক

  Electrons

  খ

  Anion

  গ

  Protons

  ঘ

  Neutrons
• What kind of charge does the nucleus carry?
  ক

  Positive (+)

  খ

  Negative (-)

  গ

  Neutral

  ঘ

  Charge of electron
• How many electrons are there in Na (sodium)?
  ক

  6

  খ

  11

  গ

  3

  ঘ

  22
• What is used when energy in an electron is absorbed?
  ক

  Black-line spectrum

  খ

  Dark-line spectrum

  গ

  Bright-line spectrum

  ঘ

  Cathode ray tube
• What is the other name for the Wave-Mechanical/Cloud Model?
  ক

  Quantum-Mechanical model

  খ

  Nuclear model

  গ

  Plum Pudding model

  ঘ

  Planetary model
• Which of the following subatomic particles are found inside the nucleus?
  ক

  Protons

  খ

  Protons and Neutrons

  গ

  Neutrons

  ঘ

  Electrons
• Which of the following subatomic particle is found outside the nucleus?
  ক

  Neutrons

  খ

  Protons and Neutrons

  গ

  Protons

  ঘ

  Electrons
• Which of the following statements are true about anions and cations? Statement 1: In anions, the electrons are more than the protons. Statement 2: In cations, the electrons are less than the protons.
  ক

  Statement 1 is true but statement 2 is false c) Statement 2 is true but statement 1 is false c) Statement 1 and statement 2, both are true d) Statement 1 and statement 2, both are false View Answer]

  খ

  5. Which of the following statements are true about anions and cations? Statement 1: In anions, the electrons are more than the protons. Statement 2: In cations, the electrons are less than the protons. a) Statement 1 is true but statement 2 is false

  গ

  Statement 2 is true but statement 1 is false [ Statement 1 and statement 2, both are true

  ঘ

  Statement 1 and statement 2, both are false
• Which subatomic particle number never changes in an element?
  ক

  Electrons

  খ

  Neutrons

  গ

  Protons

  ঘ

  Mass number
• What two numbers are always the same in a neutral atom?
  ক

  Protons and Electrons

  খ

  Neutrons and Electrons

  গ

  Neutrons and Protons

  ঘ

  Mass and protons
• What is the symbol for the element Osmium?
  ক

  O

  খ

  O3

  গ

  Os

  ঘ

  O2
• How many electrons are present in an atom of the element Potassium?
  ক

  20

  খ

  19

  গ

  18

  ঘ

  17