1) The letter "p" in the symbol 4p^3 indicates the ___.
A) spin of an electron
B) orbital shape***
C) principal energy level
D) speed of an electron
2) If the spin of one electron in an orbital is clockwise, what is the spin of the other electron in that orbital?
A) Zero
B) clockwise
C) counterclockwise***
3) According to the aufbau principle, ____.
A) an orbital may be occupied by only two electrons
B) electrons in the same orbital must have opposites spins***
C) electrons enter orbitals of highest energy first
D) electrons enter orbitals of lowest energy first
4) What is the number of electrons in the outermost energy level of an oxygen atom?
A) 2
B) 4
C) 6***
D) 8
5) How many unpaired electrons are in a sulfur atom (atomic number 16)?
A) 0
B) 1
C) 2***
D) 3
6) Stable electrons configurations are likely to contain ___.
A) filled energy sublevels***
B) fewer electrons than unstable configurations
C) unfilled s orbitals
D) electrons with a clockwise spin
I JUST TOOK THE QUIZ
the answers are:
1)b
2)c
3)d
4)c
5)c
6)a
;)
the answer to 3# is D
#3 was wrong.
i am drowning in an indescribable emptyness
1) The letter "p" in the symbol 4p^3 indicates the ___.
A) spin of an electron
B) orbital shape✓
C) principal energy level
D) speed of an electron
2) If the spin of one electron in an orbital is clockwise, what is the spin of the other electron in that orbital?
A) Zero
B) clockwise
C) counterclockwise✓
3) According to the aufbau principle, ____.
A) an orbital may be occupied by only two electrons
B) electrons in the same orbital must have opposites spins
C) electrons enter orbitals of highest energy first
D) electrons enter orbitals of lowest energy first✓
4) What is the number of electrons in the outermost energy level of an oxygen atom?
A) 2
B) 4
C) 6✓
D) 8
5) How many unpaired electrons are in a sulfur atom (atomic number 16)?
A) 0
B) 1
C) 2✓
D) 3
6) Stable electrons configurations are likely to contain ___.
A) filled energy sublevels✓
B) fewer electrons than unstable configurations
C) unfilled s orbitals
D) electrons with a clockwise spin
ATOMIC EMISSION SPECTRA & QUANTUM MECHANICAL MODEL
1) How does the speed of visible light compare with the speed of gamma rays when both speeds are measured in a vacuum
C. The speeds are the same
2) How are the frequency and wavelength of light related
A. They are inversely proportional to each other.
3) What is the wavelength of an electromagnetic wave that travels at 3 x 10^8 m/s and has frequency of 60MHz
C. 300,000,000 m/s
-------------------------
60,000,000 Hz
4) Emission of light from an atom occurs when an electron
A. Drops from a higher to a lower energy level
5) The atomic emission spectra of a sodium atom on Earth and of a sodium atom in the sun would be
A. The same
100% thank you Alexis
1) To determine the meaning of the "p" in the symbol 4p^3, we need to understand the notation used in electron configuration. Electron configuration represents the arrangement of electrons in an atom's orbitals.
In this case, the number 4 represents the principal energy level (or shell) where the electrons are located. The letter "p" represents the type of orbital where the electrons are found. The p orbitals have a dumbbell shape and can hold a maximum of six electrons.
Therefore, the answer is B) orbital shape.
2) To determine the spin of the other electron in an orbital if one electron has a clockwise spin, we need to understand the Pauli exclusion principle. According to this principle, no two electrons in an atom can have the same set of four quantum numbers. One of these quantum numbers specifies the spin of the electron, which can be either spin-up (clockwise) or spin-down (counterclockwise).
Since two electrons in the same orbital must have opposite spins, the answer is C) counterclockwise.
3) The aufbau principle is a guideline for filling electron orbitals in an atom. According to the aufbau principle, electrons enter orbitals of lowest energy first, before moving to higher energy orbitals. This principle dictates the order in which orbitals are filled during electron configuration.
Therefore, the answer is D) electrons enter orbitals of lowest energy first.
4) To determine the number of electrons in the outermost energy level of an oxygen atom, we need to look at its electron configuration. The electron configuration of oxygen is 1s^2 2s^2 2p^4.
The outermost energy level of oxygen is the second energy level, which consists of the 2s and 2p orbitals. The 2s orbital can hold a maximum of 2 electrons, while the 2p orbitals can hold a maximum of 6 electrons. Since there are 4 electrons in the 2p orbitals, we can conclude that the number of electrons in the outermost energy level of an oxygen atom is 6.
Therefore, the answer is C) 6.
5) To determine the number of unpaired electrons in a sulfur atom (atomic number 16), we need to look at its electron configuration. The electron configuration of sulfur is 1s^2 2s^2 2p^6 3s^2 3p^4.
To determine the number of unpaired electrons, we need to count the number of electrons in the p orbitals of the outermost energy level. In this case, there are 4 electrons in the 3p orbitals. Since each p orbital can hold a maximum of 2 electrons, we can conclude that there are 2 unpaired electrons in a sulfur atom.
Therefore, the answer is C) 2.
6) Stable electron configurations are likely to contain filled energy sublevels. An energy sublevel is a specific type of orbital within an energy level. Each energy sublevel has a maximum number of electrons it can hold based on its shape.
In general, stable electron configurations tend to have completely filled energy sublevels or half-filled energy sublevels. These configurations are more stable because they have lower energy levels, following the aufbau principle and the Pauli exclusion principle.
Therefore, the answer is A) filled energy sublevels.