Font size
WorksheetsQuiz 2: Week 3: Atomic Structure
Total questions: 13
Worksheet time: 19mins
9
The following statements are true, EXCEPT
The energy of a photon is proportional to its wavelength
A line spectrum is produced when light is emitted from an excited atom
The region in which an electron is most likely to be found is called an orbital
Light is composed of photons of discrete energy
A wave with a longer wavelength will have a ............. frequency and ............... energy
high, low
high, high
low, high
low, low
Which of the following statements describes Bohr's atomic postulate?
At ground state, electrons emit energy
At excited state, electrons are very stable
Electrons radiate energy while orbiting around the nucleus
Electrons radiate energy when it fall back to lower energy levels
Quantum numbers have been matched with their characteristics.
Select the CORRECT matching.
l = determine the shapes of the orbitals
n = determines three-dimensional shape of the orbital
m = determinations the orientation of the orbitals in space
s = determines direction of the electron spin on its own axis.
The rule/principle which states that when the electrons are added to the orbital of equivalent energy, each orbital is filled singly with electrons of the same spin first before it is paired is
the Aufbau principle.
the Hund's Rule.
the Pauli’s exclusion principle.
the Heisenberg’s uncertainty principle.
The Heisenberg’s uncertainty principle states that
no two electrons in the same atom can have the same set of four quantum numbers.
two atoms of the same element must have the same number of protons.
it is impossible to determine accurately both the position and momentum of an electron simultaneously
electrons of atoms in their ground states enter energetically equivalent sets of orbitals singly before they pair up in any orbital of the set.
2. The emission line spectrum of hydrogen derives from the energies released when
hydrogen atoms lose electrons to form ions.
electrons of the hydrogen atoms at their excited states fall to a lower energy level.
electrons of the hydrogen atoms jump from the ground state to higher energy level.
hydrogen ions gain electrons to form atoms.
"A region of space in which there is a high probability of finding an electron" is the definition of
Orbit
Orbital
Photon
Quantum
