Chemistry Questions-Chapter 9
How many subshells are there in the n = 4 principal shell?
4
How many valence electrons are in a chlorine atom?
7
The element with a completely filled p-subshell is:
Ar.
Which form of electromagnetic radiation has photons with the highest energy?
Gamma Rays
Which form of electromagnetic radiation has the shortest wavelength?
Gamma Rays
2
How many electrons are unpaired in the orbitals of carbon?
2
How many electrons can exist in an orbital?
"When filling orbitals of equal energy, electrons fill them singly first with parallel spins." This is known as
Hund's rule.
Which of the following atoms has the least metallic character?
Li
Which of the following elements has the highest ionization energy?
Ne
Which form of electromagnetic radiation has photons with the lowest energy?
Radio Waves
Which of the following elements has the lowest ionization energy?
Rb
Which of the following elements has the electron configuration of 3s23p4 in its outermost shell?
S
What happens to an atom when it absorbs energy?
The atom re-emits the energy as light.
How are wavelength and frequency of light related?
Wavelength increases as the frequency decreases.
Gamma Rays
Which form of electromagnetic radiation has the highest frequency?
Radio Waves
Which form of electromagnetic radiation has the lowest frequency?
Cs
Which of the following atoms has the greatest metallic character?
What is the electron configuration for P?
[Ne]3s23p3
What do the alkali metals all have in common? A) They all undergo similar reactions. B) They all have similar physical properties. C) They all form +1 ions. D) They all have the same number of valence electrons. E) all of the above
all of the above
When sunlight is passed through a prism, what is observed?
continuous spectrum
Which subshell letter corresponds to a 4-leaf clover orbital pattern?
d
The subshell that has five orbitals and can hold up to ten electrons is the
d subshell
The size of an atom generally increases:
down a group and from right to left across a period.
The number of cycles of a wave that passes a stationary point in one second is called its:
frequency.
Chlorine and bromine have very similar chemical properties. This is best explained by the fact that both elements
have the same number of valence electrons.
Which color of visible light has a wavelength in between that of blue and violet light?
indigo
The subshell that has three orbitals and can hold up to six electrons is the:
p subshell
Which color of the visible spectrum has the longest wavelength (750 nm)?
red
Which subshell letter corresponds to a spherical orbital?
s
The distance between adjacent wave crests is called:
wavelength.
When neon light is passed through a prism, what is observed?
white light
Which of the following atoms is the largest?
Cs
Which of the statements about light is FALSE? A) Light travels through space at a speed of 3.00 × 108 m/s. B) Light travels much faster than sound. C) A packet of light energy is called a photon. D) A characteristic feature of light that determines its color is its wavelength. E) All of the above statements are true.
E) All of the above statements are true.
Which element is represented by the electron configuration 1s22s22p2?
C
Which of the following atoms is the smallest?
Ne
violet
Which color of the visible spectrum has photons with the most energy?
Which color of the visible spectrum has the shortest wavelength (400 nm)?
violet
Which orbital would the electron of a ground state hydrogen atom occupy?
1s
The lowest energy orbital in the quantum-mechanical model is the:
1s orbital.
What is the electron configuration for Ga?
1s22s22p63s23p64s23d104p1
What is the electron configuration for Kr? A) 1s22s22p63s23p63d104s24p6 B) 1s22s22p63s23p64s23d104p1 C) 1s22s22p63s23p53d104s24p1 D) 1s22s22p63s23p64s24d104p1 E) none of the above
1s22s22p63s23p64s23d104p6
How many subshells are there in the n = 2 principal shell?
2
How many core electrons are in a ground state atom of arsenic?
28
How many electrons are unpaired in the orbitals of nitrogen?
3
The n = ________ principal shell is the lowest that may contain a d-subshell.
3
Which statement is NOT true about "p" orbitals? A) A subshell contains three "p" orbitals. B) These orbitals are shaped like dumbbells. C) A 3p orbital has a higher energy than a 2p orbital. D) All three of these statements are true. E) none of the above
All three of these statements are true.
Consider the electron configuration of the ion to determine which ion shown below has an incorrect ionic charge?
Al³-
How many core electrons are in a chlorine atom?
10
The "d" subshell can hold a maximum of ________ electrons.
10
The subshell letter:
specifies the 3-D shape of the orbital.
The principal quantum number (n):
specifies the principal shell of the orbital.
What is the correct order of the electromagnetic spectrum from shortest wavelength to longest? A) Gamma Rays→X-rays→Ultraviolet Radiation→Visible Light→Infrared Radiation→Microwaves→Radio Waves B) Visible Light→Infrared Radiation→Microwaves→Radio Waves→Gamma Rays→X-rays→Ultraviolet Radiation C) Radio Waves→X-rays→Ultraviolet Radiation→Visible Light→Infrared Radiation→Microwaves→Gamma Rays D) Gamma Rays→X-rays→Visible Light→Ultraviolet Radiation→Infrared Radiation→Microwaves→Radio Waves E) Gamma Rays→X-rays→Infrared Radiation→Visible Light→Ultraviolet Radiation→Microwaves→Radio Waves
Gamma Rays→X-rays→Ultraviolet Radiation→Visible Light→Infrared Radiation→Microwaves→Radio Waves
An accepted abbreviation format is to write an electron configuration that includes a noble gas symbol in brackets. If you were writing an electron configuration for a bromine atom, which elemental symbol would you place in the bracket?
Ar
Which of the atoms represented below is the largest in size?
Bi
Which of the following statements about the quantum-mechanical model is FALSE? A) Orbitals are a probability map of finding electrons. B) Electrons do not behave as particles. C) Orbitals are specific paths electrons follow. D) Electron paths cannot be described exactly. E) All of the above are correct statements.
Orbitals are specific paths electrons follow.
Which form of electromagnetic radiation has the longest wavelength?
Radio Waves
What is the element in which at least one electron is in the d-orbital?
Sc
Which statement below does NOT follow the Bohr Model? A) When energy is absorbed by atoms, the electrons are promoted to higher-energy orbits. B) When an atom emits light, electrons fall from a higher orbit into a lower orbit. C) The energy emitted from a relaxing electron can have any wavelength. D) Electrons exist in specific, quantized orbits. E) none of the above
The energy emitted from a relaxing electron can have any wavelength.
Which among the following statements is TRUE? A) The wavelength of light is inversely related to its energy. B) As the energy increases, the frequency of radiation decreases. C) As the wavelength increases, the frequency also increases. D) Red light has a shorter wavelength than violet light. E) none of the above
The wavelength of light is inversely related to its energy.
Which one of the following types of electromagnetic radiation has a higher energy per photon than visible radiation?
ultraviolet
