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9 Electronic Structure of the Atom: SAQ2

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9 Electronic Structure of the Atom: SAQ2

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Questions and Answers

What is the minimum energy required for an electron to move from a lower energy level to a higher energy level?

E2 – E1

What is the significance of the value n = 1, 2, 3, 4, etc. in energy levels?

These values represent the energy levels

What is a major limitation of the Bohr theory in describing the behavior of electrons?

It did not take account of the fact that electrons have the properties of waves as well as particles

What is the Heisenberg Uncertainty Principle stating about the electron's position and velocity?

It is not possible to determine at the same time, the exact position and velocity of an electron Signup and view all the answers

What is the definition of an atomic orbital?

The region around the nucleus where the probability of finding an electron is relatively high (>95%) Signup and view all the answers

What is the difference between an energy level and an energy sublevel?

An energy level is a region of definite energy within an atom, while an energy sublevel is a group of atomic orbitals all of the same energy Signup and view all the answers

What is the Aufbau Principle stating about the occupation of energy sublevels by electrons?

Electrons will occupy the lowest sublevel available Signup and view all the answers

What is the major shortcoming of the Bohr theory in explaining the energy levels of atoms?

It did not explain the discovery of sublevels Signup and view all the answers

What is an energy level in an atom, and how do electrons occupy it?

An energy level is a region of definite energy within an atom that electrons can occupy. Electrons can occupy specific energy levels within the atom. Signup and view all the answers

What is the Heisenberg uncertainty principle?

It is not possible to determine at the same time, the exact position & velocity of an electron. Signup and view all the answers

What is a spectrum, and what are the three types of spectra?

A spectrum is a band of colors produced when light is separated into its different wavelengths. The three types of spectra are continuous, emission, and absorption spectra. Signup and view all the answers

What is the purpose of an atomic absorption spectrometer, and how does it work?

An atomic absorption spectrometer is used to measure the presence and amount of an element. It works by measuring the absorption of light at specific wavelengths, which corresponds to the energy levels of the element. Signup and view all the answers

What is the relationship between the energy levels of an electron and the frequency of light emitted, according to Niels Bohr's theory?

According to Niels Bohr's theory, when an electron moves from a higher energy level (E2) to a lower energy level (E1), a definite amount of energy is emitted in the form of light, and the energy difference is related to the frequency of light emitted by the equation E2 - E1 = hf. Signup and view all the answers

What is an energy sublevel made up of?

An energy sub-level is made up of a group of atomic orbitals all of the same energy. Signup and view all the answers