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Electron arrangement

Quiz by edel kinsella

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15 questions
Show answers
  • Q1
    Who was the first to provide a picture of the arrangement of electrons in the atom?
    Albert Einstein
    Niels Bohr
    Erwin Schrödinger
    Marie Curie
    30s
  • Q2
    What does a 'spectrum' refer to in the context of light?
    An array of colours being produced
    A type of chemical reaction
    A solid state of matter
    A form of energy
    30s
  • Q3
    What type of spectrum did Bohr observe when he examined hydrogen gas?
    Emission line spectrum
    Absorption spectrum
    Continuous spectrum
    Reflection spectrum
    30s
  • Q4
    Why do different elements produce unique emission line spectra?
    Due to their chemical bonding
    Due to the different number and arrangement of electrons
    Because of their physical state
    Because of their atomic mass
    30s
  • Q5
    What was the method Bohr used to create his emission line spectrum?
    Passing white light through a prism
    Shining sunlight through a crystal
    Heating metal to produce smoke
    Using hydrogen gas with charged electrodes
    30s
  • Q6
    What was the significance of Bohr's experiment with hydrogen gas?
    It proved light cannot be separated
    It confirmed gravity's influence on light
    It illustrated the importance of chemical reactions
    It showed unique spectra for different elements
    30s
  • Q7
    What did Bohr's investigation into spectra reveal about electron arrangements?
    They determine the atom's charge
    They have no effect on the spectrum
    They only affect the mass of the atom
    They directly influence the spectrum produced
    30s
  • Q8
    What characterizes the excited state of an atom?
    Electrons occupy higher energy levels than in the ground state
    Electrons have no defined energy levels
    Electrons move randomly around the nucleus
    Electrons are in the lowest energy levels
    30s
  • Q9
    According to the Bohr theory, how do electrons move around the nucleus?
    In random paths
    In circular paths only
    In fixed paths called orbits
    In elliptical paths only
    30s
  • Q10
    What does it mean for electrons in energy levels to be quantised?
    They can have any value of energy
    They can exist in multiple levels simultaneously
    They have fixed, definite values of energy
    They are always moving
    30s
  • Q11
    In which state does an atom exist when its electrons are in the lowest energy levels?
    Ground state
    Excited state
    Unstable state
    Ionized state
    30s
  • Q12
    What happens to an atom when it absorbs energy?
    Electrons can move to higher energy levels
    Electrons disappear
    Electrons lose energy
    Electrons split into smaller particles
    30s
  • Q13
    Which of the following statements about Bohr's energy levels is true?
    Electrons can exist between energy levels
    Energy levels can vary infinitely
    Energy levels are fixed
    Energy levels are only theoretical
    30s
  • Q14
    What is the significance of the lowest energy level, n=1?
    It has no significance
    It is the highest energy level
    It is an unstable state
    It is the ground state of the atom
    30s
  • Q15
    Which of these describes how electrons are arranged in an atom?
    They occupy quantized energy levels
    They are free to move anywhere
    They form a continuous band of energy
    They are randomly dispersed
    30s

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