15 Questions
What is the valence-shell configuration for gallium (Z = 31)?
[Ar]4s24p1
What are the configurations for the outer electrons of tellurium (Z = 52)?
[Kr]5s24d105p4
According to the Hund's Rule, what is the lowest energy arrangement of electrons in a subshell?
Putting electrons into separate orbitals of the subshell with the same spin before pairing electrons
Based on the information provided, arrange the following elements in order of increasing atomic radius: Al, C, Si.
C < Si < Al
What is the first ionization energy for Li in eV?
5.39 eV
"High values of first ionization energy are associated with which group of elements?"
Noble gases
"Ionization energies tend to decrease going down any column." According to this statement, what can be expected for ionization energies going down a group?
Decrease
"The atomic radius tends to decrease with increasing atomic number within each period." According to this statement, what can be expected for atomic radius within a period?
Decrease
"From its position in the periodic table, would you classify X as a main-group element, a transition element, or an inner transition element?" Based on the given electron configuration [Xe]4f14 5d106s26p2, how would you classify X?
Inner transition element
According to the Pauli exclusion principle, which of the following statements is true?
No two electrons in an atom can have the same four quantum numbers.
What does the electron configuration 1s22s22p1 represent?
Boron
In an orbital diagram, what does an upward-pointing arrow indicate?
An electron with spin quantum number ms = +1/2
What is the significance of the Stern–Gerlach experiment in relation to electron spin?
It demonstrated the behavior of electrons in a magnetic field.
Which subshell consists of a group of orbitals having the same n and l quantum numbers but different ml values?
P subshell
What is the sequence for filling subshells according to the building-up principle (Aufbau Principle)?
$1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f$
Test your knowledge about electron spin, the Pauli exclusion principle, and electron configurations with this quiz. The quiz covers concepts such as the Stern–Gerlach experiment and orbital diagrams.
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