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There are several different quantum numbers for a given atom (principle quantum number, the angular quantum number, the magnetic quantum number, the spin quantum number, etc) .
I assume you are looking for the Principle Quantum number, n, which is equal to the row (period) in the period table in which the element is situated.
For helium, the principle quantum number is 1.
i.e. n = 1
As another example; the principle quantum number for potassium (K), n = 4.
What else can I help you with?
What is the quantum number set of the ground-state electron that is found in helium but not in hydrogen?
The quantum number set of the ground-state electron in helium, but not in hydrogen, is (1s^2) or (n=1, l=0, ml=0, ms=0). It indicates that the electron occupies the 1s orbital, which has a principal quantum number (n) of 1, an orbital angular momentum quantum number (l) of 0, a magnetic quantum number (ml) of 0, and a spin quantum number (ms) of 0.
Names and symbols of the four quantum numbers required to define the energy of electrons in atoms?
The four quantum numbers are: Principal quantum number (n) - symbolized as "n" Azimuthal quantum number (l) - symbolized as "l" Magnetic quantum number (ml) - symbolized as "ml" Spin quantum number (ms) - symbolized as "ms"
What is the magnetic quantum number of copper?
"Magnetic quantum number" is a quantum number that corresponds to individual electrons, not to an entire atom.
What is the atomic number for helium?
The atomic number of Helium is 2.
What does a quantum number describe?
n is the first quantum number. It is the principle quantum number. It refers to what energy level it is and will be one greater than the number of nodes in the orbital. l is the second quantum number. It is the angular momentum quantum number and refers to the shape of the orbital. ml is the third quantum number. It is the magnetic quantum number and it refers to the orientation of the orbital. ms is the fourth quantum number. It is the spin quantum number and refers to the magnetic character of the orbital.
What is a possible quantum number set for an electron found in a ground-state helium (He) atom?
A possible quantum number set for an electron in a ground-state helium atom could be n1, l0, m0, s1/2.
What is the quantum number set of the ground-state electron that is found in helium but not in hydrogen?
The quantum number set of the ground-state electron in helium, but not in hydrogen, is (1s^2) or (n=1, l=0, ml=0, ms=0). It indicates that the electron occupies the 1s orbital, which has a principal quantum number (n) of 1, an orbital angular momentum quantum number (l) of 0, a magnetic quantum number (ml) of 0, and a spin quantum number (ms) of 0.
What are the 4 quantum numbers for germanium?
The four quantum numbers for germanium are: Principal quantum number (n) Azimuthal quantum number (l) Magnetic quantum number (ml) Spin quantum number (ms)
What are the quantum numbers of calcium?
The quantum numbers of calcium are: Principal quantum number (n): 4 Angular quantum number (l): 0 Magnetic quantum number (ml): 0 Spin quantum number (ms): +1/2
Names and symbols of the four quantum numbers required to define the energy of electrons in atoms?
The four quantum numbers are: Principal quantum number (n) - symbolized as "n" Azimuthal quantum number (l) - symbolized as "l" Magnetic quantum number (ml) - symbolized as "ml" Spin quantum number (ms) - symbolized as "ms"
What is the magnetic quantum number of copper?
"Magnetic quantum number" is a quantum number that corresponds to individual electrons, not to an entire atom.
What is the atomic number for helium?
The atomic number of Helium is 2.
What does a quantum number describe?
n is the first quantum number. It is the principle quantum number. It refers to what energy level it is and will be one greater than the number of nodes in the orbital. l is the second quantum number. It is the angular momentum quantum number and refers to the shape of the orbital. ml is the third quantum number. It is the magnetic quantum number and it refers to the orientation of the orbital. ms is the fourth quantum number. It is the spin quantum number and refers to the magnetic character of the orbital.
What is the third quantum number of a 3s2 electron in phosphorus?
The third quantum number is the magnetic quantum number, also known as the quantum number that specifies the orientation of an orbital in space. For a 3s orbital, the possible values of the magnetic quantum number range from -l to +l, where l is the azimuthal quantum number, which is 0 for an s orbital. Therefore, the third quantum number for a 3s2 electron in phosphorus is 0.
Write four quantum numbers for 1s electron?
How are electrons arranged in the quantum mechanical model of an atom
What are 4 quantum numbers for Bromine?
The four quantum numbers for Bromine (Z = 35) are: Principal quantum number (n): 4 Azimuthal quantum number (l): 0 Magnetic quantum number (ml): 0 Spin quantum number (ms): +1/2 or -1/2
What does the number 2 indicate in helium?
2 is the atomic number (or the number of protons) of helium.
