It is the electronconfiguration of elemental Sulfur with 16 electrons:
Explained:
1s2 2s2 2p6 3s23p4 => add up the superscripts (bold): 2+2+6+2+4 = 16
16 electrons means 16 protons for that element, so it is atom number 16 in the Periodic Table: 3rd period (3 electron levels: 1, 2, 3) with 6 electrons (3s23p4) in it, so the element is in group 6 (or 16).
The element with the electron configuration 1s2 2s2 2p6 is neon (Ne).
The element with the electron configuration 1s2 2s1 is lithium.
The element with atomic number 15 is phosphorus. Its electron configuration is 1s2 2s2 2p6 3s2 3p3.
The electron configuration of lithium (Li) is 1s2 2s1, with 3 electrons distributed in the 1s and 2s orbitals. The electron configuration of fluorine (F) is 1s2 2s2 2p5, with 9 electrons distributed in the 1s, 2s, and 2p orbitals.
The element with this electron configuration is arsenic (As), with 33 electrons.
The element with the electron configuration 1s2 2s2 2p6 is neon (Ne).
The element with the electron configuration 1s2 2s1 is lithium.
The element with atomic number 15 is phosphorus. Its electron configuration is 1s2 2s2 2p6 3s2 3p3.
This group has the electron configuration of sulfur. The element sulfur has 16 electrons, and its electron configuration is 1s2 2s2 2p6 3s2 3p4.
The element with the electron configuration 1s2 2s2 2p6 3s2 3p6 is Argon, which has an atomic number of 18.
The element with the electron configuration of 1s2 2s2 2p6 3s2 3p2 is Silicon (Si).
The most electronegative element is fluorine. Its electron configuration is 1s2 2s2 2p5.
Magnesium
The electron configuration of lithium (Li) is 1s2 2s1, with 3 electrons distributed in the 1s and 2s orbitals. The electron configuration of fluorine (F) is 1s2 2s2 2p5, with 9 electrons distributed in the 1s, 2s, and 2p orbitals.
Phosphorus has the above electron configuration. It has 15 electrons and protons.
The element with this electron configuration is arsenic (As), with 33 electrons.
The element that corresponds to the electron configuration 1s2 2s2 is Beryllium (symbol Be), which has an atomic number of 4. It has 4 electrons, with 2 in the 1s orbital and 2 in the 2s orbital.