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WorksheetsSCIENCE 9 ESTHER/JOSHUA 3RD MONTHLY EXAM
Total questions: 36
Worksheet time: 18mins
There are ___ types of quantum numbers.
1
2
3
4
Which element has the ground state electronic configuration 1s22s22p63s23p5?
Si
S
Cl
P
The maximum number of electrons with l = 3 is
2
6
10
14
Heisenberg’s Uncertainty Principle states that the ___ and ___ of an electron cannot be known simultaneously.
position, mass
position, charge
position, momentum
momentum, speed
The quantum mechanical model describes electrons as:
particles
waves
particles with wave-like properties
small, hard spheres
How many total electrons can the ‘p’ orbitals hold?
2
6
10
14
How many orbitals are in the 4d subshell?
1
3
5
7
Can orbital 3f exist?
YES
NO
The spin quantum number (ms) refers to
Direction of elecron spin
Energy level the elecron is in
sublevel or shape of the orbital the electron is in
Orientation of the orbitals around the nucleus
The principal quantum number (ms) refers to
Direction of elecron spin
Energy level the elecron is in
sublevel or shape of the orbital the electron is in
Orientation of the orbitals around the nucleus
What do you call the electron on the outermost energy level responsible for chemical bonding?
electron
neutron
proton
valence electron
It is the energy required to remove an electron from the outermost energy level of an atom
electronegativity
ionization energy
proton
valence electron
What kind of element forms cation after ionic bonding?
metal
metalloid
noble gas
nonmetal
Valence electrons are those that are
closest to the nucleus.
freely floating between atoms.
in the outermost energy level of the atom.
unable to become involved in chemical bonding.
Atoms and ions that are isoelectronic have
the same charge.
the same number of electrons.
the same number of protons.
no charge since the number of protons and electrons is equal.
Which is a correct assumption of the wave mechanical model of the atom?
Electrons orbit the nucleus in circular patterns
Electrons on the same energy level have the same amount of energy
Electrons on different sublevels within an energy level have different amounts of energy
Electrons do not repel each other
The 3 in "3p" corresponds to what?
A principal energy level
A sublevel
The number of electrons in the sublevel
The number of sublevels in an energy level
The shape of a p orbital is
dumbbell
spherical
cubic
oblong
An electron in the 3p sublevel has (more/less) energy than an electron in the 2s sublevel.
(a)
An orbital is a representation of
An electron's location
The space where an electron is likely to exist
The number of electrons in a sublevel
Protons - electrons
What makes electromagnetic waves different from mechanical waves?
no medium required
medium needed
light -catalyzed
space exclusive
Which type of EM waves has the shortest wavelength?
radio wave
visible light
gamma ray
ultraviolet
Which electromagnetic wave possesses the least energy?
microwave
radio wave
infrared
gamma ray
what happens to the frequency of a wave as wavelength increases?
increases
decreases
remains constant
diminishes to zero
EM waves used in checking the authenticity of bank notes
microwave
infrared
ultraviolet
X-ray
Utilized in treating cancer, the radiotherapy
gamma ray
x-ray
visible light
microwave
Plays important role in wireless communication
ultraviolet
visible light
infrared
microwave
Helpful in military night vision goggles
radio wave
microwave
infrared
light
Used in medical technology specifically in generating images of lungs and bone fractures
infrared
visible light
ultraviolet
x-ray
EM waves in which our eyes are sensitive to
infrared
light
ultraviolet
gamma ray
