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Ca
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When comparing the energy of an electron in the 3d sub-level to that of an electron in the 4s sublevel of the same atom?
They are both capable of holding a maximum of 10
In the ground state the 3d and 4s sublevels of the chromium atoms atomic number 24 are represented as?
In the ground state of a chromium atom (atomic number 24), the electron configuration is [Ar] 3d^5 4s^1, with 5 electrons in the 3d sublevel and 1 electron in the 4s sublevel. This configuration is due to the stability achieved by half-filling the 3d sublevel before completely filling the 4s sublevel.
What could be the fourth quantum number for one of the electron in the 4p energy sub level of bromine?
The fourth quantum number, known as the spin quantum number (ms), can have values of +1/2 or -1/2. For an electron in the 4p sublevel of bromine, which has the electron configuration of [Ar] 4s² 3d¹⁰ 4p⁵, the spin quantum number could be either +1/2 or -1/2, depending on the specific electron's spin orientation. Thus, one possible value for the fourth quantum number for an electron in this sublevel is +1/2, while another possible value is -1/2.
Why does the 4S orbital begin to fill before the 3D orbital?
Electrons occupy orbitals in a definite sequence, filling orbitals with lower energies first. Generally, orbitals in a lower energy level have lower energies than those in a higher energy level. But, in the third level the energy ranges of the principal energy levels begin to overlap. As a result, the 4s sublevel is lower in energy than the 3d sublevel, so it fills first.
What is the element in Period 4 that has two electrons in the p sublevel name?
The element in Period 4 that has two electrons in the p sublevel is germanium (Ge). It has the atomic number 32 and is located in group 14 of the periodic table. In its electron configuration, germanium has the outermost electrons in the 4s and 4p sublevels, with the 4p sublevel containing two electrons.
Which element has 2 electrons in the 4s sublevel?
Ca
Why does an electron occupy the 4s orbital before the 3d orbit?
The 3d sublevel is not filled until after the 4s sublevel, because the 3d sublevel has more energy than the 4s sublevel, and less energy than the 4p sublevel.
When comparing the energy of an electron in the 3d sub-level to that of an electron in the 4s sublevel of the same atom?
They are both capable of holding a maximum of 10
What element has 2 electrons in the 4s sublevel?
Calcium is the element that has 2 electrons in the 4s sublevel.
Which elements have 2 electrons in the 4s sublevel?
The elements that have 2 electrons in the 4s sublevel are calcium (Ca) and scandium (Sc).
In the ground state the 3d and 4s sublevels of the chromium atoms atomic number 24 are represented as?
In the ground state of a chromium atom (atomic number 24), the electron configuration is [Ar] 3d^5 4s^1, with 5 electrons in the 3d sublevel and 1 electron in the 4s sublevel. This configuration is due to the stability achieved by half-filling the 3d sublevel before completely filling the 4s sublevel.
What elements has 2 electrons in the 4s sub level?
The element with 2 electrons in the 4s sublevel is Calcium (Ca) with an electron configuration of 1s2 2s2 2p6 3s2 3p6 4s2.
What element have 2 electrons in the 4s sublevel?
Ca
Does zinc have a partially filled 'd' sublevel?
Yes, zinc is a transition metal with a partially filled 'd' sublevel. Its electron configuration is [Ar] 3d10 4s2, meaning it has completely filled the 3d sublevel with 10 electrons and has 2 electrons in the 4s sublevel.
Even though zinc is after copper in the periodic table leading to an increase in the nulear charge by 1 which should therefore decrease the radius why is it larger than copper?
Zinc has a filled 3d sublevel and 4s sublevel. There is more shielding from the effective nuclear charge within the filled 3d sublevel and also from the filled 4s sublevel. Copper does not have a filled 4s sublevel; recall that one of the 4s electrons "jumps up" to the 3d sublevel thereby stabilizing it by making it filled with 10 electrons. Because of this, the 4s is only half filled and there is not as much shielding within the 4s sublevel allowing the effective nuclear charge to pull the 4th energy level in more toward the nucleus. This will make the overall size of the atom smaller.
How many electron orbitals calcium have?
Zero. Calcium has two electrons in its 4s sublevel, and none in the 3d sublevel. The 3d sublevel doesn't start filling until after the 4s sublevel is filled.
Why is copper a transition metal as it have completely filled d sub-shell?
An electron moves from the 4s sublevel to produce a completely filled 3d sublevel. A completely filled sublevel is more stable. Just because it has a filled d sublevel doesn't prevent it from being a transition metal. It has variable valence (1+ and 2+).
