Two electrons can occupy the 2s subshell, and 8 electrons can occupy the 3d subshell.
The 2s subshell can hold a maximum of 2 electrons. This is because each orbital within a subshell can hold a maximum of 2 electrons, and the 2s subshell consists of only one orbital. Therefore, the total capacity of the 2s subshell is 2 electrons.
A 2s subshell and a 2p subshell can be distinguished by their shape and energy levels. The 2s subshell is spherical and has a lower energy than the 2p subshell, which has a dumbbell shape and is oriented along specific axes (x, y, z). Additionally, the 2s subshell can hold a maximum of 2 electrons, while the 2p subshell can hold up to 6 electrons. These differences in shape, energy, and electron capacity help identify each subshell.
The element with four 2p electrons is carbon. In its electron configuration, carbon has a total of six electrons, with two occupying the 1s orbital and four in the 2s and 2p orbitals. Specifically, the configuration is 1s² 2s² 2p², indicating that there are two electrons in the 2s subshell and two in the 2p subshell.
In beryllium (Be), the valence subshell occupied by electrons is the 2s subshell, with the electron configuration being 1s² 2s². In arsenic (As), the valence subshells are the 4s and 3d subshells, with the electron configuration being [Ar] 4s² 3d¹⁰ 4p³. Therefore, beryllium has electrons in the 2s subshell, while arsenic has electrons in the 4s and 4p subshells.
In the ground state of atomic silicon, which has an atomic number of 14, there are a total of 14 electrons. The electron configuration is 1s² 2s² 2p⁶ 3s² 3p². Therefore, there are 2 electrons in the 3p subshell.
The 2s subshell can hold a maximum of 2 electrons. This is because each orbital within a subshell can hold a maximum of 2 electrons, and the 2s subshell consists of only one orbital. Therefore, the total capacity of the 2s subshell is 2 electrons.
The third subshell, which is the 2s and 2p subshells, can hold a maximum of 8 electrons.
A 2s subshell and a 2p subshell can be distinguished by their shape and energy levels. The 2s subshell is spherical and has a lower energy than the 2p subshell, which has a dumbbell shape and is oriented along specific axes (x, y, z). Additionally, the 2s subshell can hold a maximum of 2 electrons, while the 2p subshell can hold up to 6 electrons. These differences in shape, energy, and electron capacity help identify each subshell.
Transfer of an electron from a higher energy orbit (2s) to a lower energy orbit (1s) is not possible because it would violate the energy conservation principle. Electrons naturally occupy the lowest available energy levels in an atom, following the Aufbau principle. This means electrons will only move to higher energy levels if they absorb energy, not by transferring between lower and higher energy levels.
The 2s subshell has a spherical shape and can hold a maximum of 2 electrons, while the 2p subshell has a dumbbell shape and can hold a maximum of 6 electrons. Additionally, the 2p subshell consists of three orbitals (labeled px, py, pz), while the 2s subshell consists of only one orbital.
The element with four 2p electrons is carbon. In its electron configuration, carbon has a total of six electrons, with two occupying the 1s orbital and four in the 2s and 2p orbitals. Specifically, the configuration is 1s² 2s² 2p², indicating that there are two electrons in the 2s subshell and two in the 2p subshell.
The electrons in beryllium occupy a total of four orbitals. Beryllium has 4 electrons, which fill the 1s, 2s, and 2p orbitals.
In the ground state of atomic silicon, which has an atomic number of 14, there are a total of 14 electrons. The electron configuration is 1s² 2s² 2p⁶ 3s² 3p². Therefore, there are 2 electrons in the 3p subshell.
In an atom with seven electrons, such as nitrogen (atomic number 7), the electron configuration is 1s² 2s² 2p³. Of these seven electrons, three occupy the P orbitals (2p³), while the other four fill the 1s and 2s orbitals. Therefore, in this case, three of the seven electrons occupy P orbitals.
In a lithium atom, the energy of the 2s subshell is lower than the energy of the 2p subshell.
The electron configuration of phosphorus (atomic number 15) is 1s² 2s² 2p⁶ 3s² 3p³. This indicates that phosphorus has two electrons in the 1s subshell, two in the 2s subshell, six in the 2p subshell, two in the 3s subshell, and three in the 3p subshell. The configuration reflects its position in the periodic table and its chemical properties.
The second period (row) on the periodic table consists of elements that are filling the 2nd energy level, from 2s1 in lithium to 2s22p6 in neon.