cemstry test
The n= 1 shell contains _____ p orbitals.all the other shells contain _______ p orbitals.
0,3
S orbitals can have how many different orientations in space?
1
At a maximum, an f orbital can hold ____ electrons,a d orbital can hold _____ electrons and a p orbital can hold _____ electrons
14,10,6
All orbitals can hold a maximum of________ electrons
2
There are_______ subshell in the second shell.
2
there are ________ total orbitals in the 3rd shell.
25
Which of the orbitals below do not exist due to the constraints upon the angular quantum number?
2d
which one of the following is an incorrect orbital notation?
2d
The lowest energy shell that contains d orbitals is the shell with n= .
3
The principal quantum number of the first d orbital is .
3
The ____ sub shell is partially filled in Manganese atom
3d
Which of the orbitals below do not exist due to the constraints upon the angular quantum number?
3s
how many quantum numbers are necessary to designate a particular electron in an atom
4
The 2p orbital in the ground state of atomic neon contains_____ electrons
6
the p-orbital can accommodate a maximum of _____ electrons.
6
D orbitals can have how many different orientations in space?
7
The second shell in the ground state of atomic Argon contains_______electrons
8
all of the orbitals in a given subshell have the same value of the ____________ quantum number.
Principal and Angular
Which two elements have the same ground state electron configuration
no two elements have the same ground state electron configuration
_______Orbitals are dumbbell shaped
p
All of the orbitals in a given electron shell have the same value for the __________ quantum number.
principal[4]
Bohr`s atomic model
proposes that electrons occupy specific energy levels. explains the emission spectra a hydrogen atoms.
In the quantum-mechanical model of the atom,an orbital is defined as a
region of the most probable electron location .
During a flame test, a lithium salt produces a characteristic red flame.this red color is produced when electrons in excited lithium atoms
return to lower energy states within the atoms
________Orbitals are spherically symmetrical.
s
The heisenberg uncertainty principle
states that the position and momentum of an electron in an atom cannot be found precisely because measuring the electrom changes its momentum
In the quantum-mechanical model of the atom,which of the following is NOT one of the four quantum numbers needed to specify the probable location of an electron?
Heisenberg number(H)which describes the electron`s position and momentum.
The lowest orbital energy is reached when the number of electrons with the same spin is maximized. The statement describes
Hund's rule
When an excited electron in an atom moves from the ground state, the electron
absorbs energy as it moves to a higher energy state.
The quantum number defines the shape of an orbital
angular[1]
The quantum-mechanical model of the atom
describes an electron probability distribution that determines the most likely location of an electron. is the currently accepted atomic models. makes prediction based on schrodinger's wave equation.
Rutherford`s nuclear model of the atom
does not account for the stability of most atoms since accelerating electrons would quickly lose energy and fall into the nucleus,causing the atoms to collapse.
The word Aufbau means building up in German. The Aufbau Principle describes that
electrons fill lower energy levels first before occupying higher energy levels.