Electrons and Atomic Structure

Flashcard
•
Science
•
11th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the Quantum Mechanics model of the atom?
Back
The Quantum Mechanics model describes the atom as a complex structure where electrons exist in probabilistic orbitals rather than fixed paths, emphasizing wave-particle duality.
2.
FLASHCARD QUESTION
Front
Who proposed that 'the atom is mostly empty space'?
Back
Ernest Rutherford proposed that 'the atom is mostly empty space' based on his gold foil experiment, which showed that most alpha particles passed through the foil without deflection.
3.
FLASHCARD QUESTION
Front
What does it mean when we say an electron 'gives back' energy?
Back
It means that the energy an electron emits when transitioning to a lower energy level is equal to the energy it originally absorbed when moving to a higher energy level.
4.
FLASHCARD QUESTION
Front
In the Bohr model, what happens to an electron's energy level as it moves further from the nucleus?
Back
In the Bohr model, as an electron moves further from the nucleus, its energy level increases.
5.
FLASHCARD QUESTION
Front
In the Bohr model, what happens to an electron's energy level as it gets closer to the nucleus?
Back
In the Bohr model, as an electron gets closer to the nucleus, its energy level decreases.
6.
FLASHCARD QUESTION
Front
What is the significance of the electron's energy levels in an atom?
Back
Electron energy levels determine the chemical properties of an atom, including its ability to bond with other atoms.
7.
FLASHCARD QUESTION
Front
Define the term 'orbital' in the context of atomic structure.
Back
An orbital is a region in an atom where there is a high probability of finding an electron.
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