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Which element has 2 electrons in the 4s sublevel?

Ca


What element completes the 4s sublevel?

The element that completes the 4s sublevel is calcium (Ca). It has the atomic number 20, which means it has 20 electrons. The electron configuration of calcium is (1s^2 2s^2 2p^6 3s^2 3p^6 4s^2), indicating that the 4s sublevel is filled after the 3p 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


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.


What are the sublevel of Fe?

Iron (Fe) has the electron configuration of [Ar] 3d^6 4s^2. The sublevels for iron include the 4s sublevel, which is filled before the 3d sublevel, and the 3d sublevel, which contains six electrons. Thus, the relevant sublevels for iron are 4s and 3d.


What completes the 4s sublevel?

The 4s sublevel is completed when it contains a total of two electrons. In the context of electron configuration, this sublevel is filled before the 3d sublevel, according to the Aufbau principle. Thus, the 4s sublevel is filled before the 3d sublevel begins to receive electrons.


What chemical completes the 4s sublevel?

The 4s sublevel is completed by the element calcium, which has an atomic number of 20. In the electron configuration of calcium, the 4s sublevel is filled after the 3p sublevel, resulting in the configuration of 1s² 2s² 2p⁶ 3s² 3p⁶ 4s². Therefore, the completion of the 4s sublevel occurs when two electrons occupy it.


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