WorksheetsTG1-Initial_2024-2025
Total questions: 8
Worksheet time: 5mins
Pleas, select the correct statement
Ca+ and Ca2+ are two isotopes of Ca
Atoms of
one element are different from atoms of other element
The most abundant isotope of hydrogen is deuterium
The mass number of a given atom is the sum of protons and electrons of that atom
The visible region of the electromagnetic spectrum includes the wavelengths corresponding to colors that range, from shorter to longer wavelengths, as follows:
violet to red
yellow to green
red to violet
blue to green
The value of the work function of a metal:
is independent of the nature of the metal
is characteristic of each metal
is directly proportional to the Rydberg constant
has units of frequency (Hz)
The probability density for a particle in a one-dimensional box of size L for the state n = 2
has no nodes
has two nodes
is maximun at L/2
is identical in the intervals [0, L/2] and [L/2, L]
Knowing that the expression for the Energy levels of an electron in a hydrogen-like atom is En = - hRZ2/n2
the groud state corresponds to n = 0
all energy values are permitted
the ground state has an energy of E = 0 J
the groud state corresponds to n = 1
In spherical polar coordinates
r = [0, ∞]
θ = [0, π]
ϕ = [0, 2π]
r = [0, 2π]
θ = [0, π]
ϕ = [0, π]
r = [0, ∞]
θ = [0, 2π]
ϕ = [0, π]
r = [0, ∞]
θ = [0, ∞]
ϕ = [0, π]
Choose the correct statement about the hydrogen-like atom:
the energy of 3s orbital is lower than that of 2s orbital
the subshell 3d has 5 degenerated orbitals
the subshell 3p has 5 degenerated orbitals
the subshell 3d has 3 degenerated orbitals
The Plank constant has units of:
frecuency (Hz)
Wavelength (m)
Energy (J)
Energy·time (J·s)
