The Electron

What early analogy did John Newlands use to describe the periodic table?

• Astronomical constellations

• Musical octaves

• Mathematical equations

• Geometric shapes

What concept explains why atoms have fixed electron configurations?

• Gravitational pull

• Magnetic fields

• Random motion

• Standing waves

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Which of the following best describes the wave-particle duality of electrons?

• Electrons are only particles

• Electrons behave as both particles and waves

• Electrons are only waves

• Electrons are neither particles nor waves

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What is the significance of electron shells and subshells in chemistry?

• They define chemical behavior

• They affect gravitational force

• They influence color of elements

• They determine atomic mass

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How does the concept of ionization energy relate to chemical stability?

• It indicates the energy required to remove an electron

• It measures the mass of an atom

• It determines the color of an element

• It predicts the speed of a chemical reaction

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What does the quantum mechanical description of electrons emphasize?

• Deterministic orbits

• Probabilistic nature of electron location

• Fixed paths of electrons

• Electrons as tiny planets

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Why are electron orbitals considered fundamental to the universe?

• They dictate the properties of all material substances

• They are visible to the naked eye

• They are responsible for gravity

• They control the weather

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What role does the diagonal rule play in electron configuration?

• It guides the filling order of subshells

• It determines atomic number

• It predicts element color

• It measures atomic radius

How did the wave-like nature of electrons revolutionize atomic theory?

• By confirming classical models

• By eliminating the need for electron models

• By leading to more accurate quantum models

• By simplifying atomic structures

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What is the relationship between electron affinity and chemical reactivity?

• High electron affinity drives chemical reactivity

• Low electron affinity stops chemical reactions

• Electron affinity is unrelated to reactivity

• Electron affinity only affects physical properties

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