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Which has 2 electron in the 4s sublevel?
Ca
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.
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.
Which of an atom's electrons are involved in the chemical reactions?
transition metals b/c some, such has iron, have an incomplete 3d sublevel as well as a complete 4s level that are used in reactions
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 element has 2 electrons in the 4s sublevel?
Calcium is the element that has 2 electrons in the 4s sublevel.
What element completes the 7s sublevel?
The element that completes the 7s sublevel is radium, with the electron configuration 7s2.
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).
Which has 2 electron in the 4s sublevel?
Ca
Which element has 2 electrons in the 4s sublevel?
Ca
What elements completes the 2s sublevel?
The 2s sublevel can hold a maximum of 2 electrons.
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 are the valence electrons of calcium in the 4s orbital not the 3d orbital?
Valence electrons occupy higher energy levels first before moving to lower energy levels, according to the aufbau principle. In calcium, the 4s orbital has lower energy than the 3d orbital, so valence electrons fill the 4s orbital first before the 3d orbital.
What element have 2 electrons in the 4s sublevel?
Ca
What element completes the 2p sublevel?
The 2p sublevel is completed with six electrons and is found in elements from carbon (C) onwards. The seventh element, nitrogen (N), is the element that completes the 2p sublevel.
Why do you believe that the valence electrons of calcium and potassium reside in the 4s orbital rather than in the 3d orbital?
The 4s orbital is energetically lower than the 3d orbital, so electrons preferentially occupy the 4s orbital first in atoms like calcium and potassium. Electrons fill orbitals based on their energy levels, following the Aufbau principle, which explains why the valence electrons of these elements reside in the 4s orbital.
