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).
Assuming the atom is neutral, the atomic number is equal in magnitude to the number of electrons, which is 22. This element is titanium, which has an atomic number of 22.
The atomic number is 20.
That is sodium, atomic number 11.
This element is calcium (Ca).
This chemical element is neon (Ne).
Lithium (Li) has the electron configuration 1s2 2s1.
Helium has the electron configuration 1s2
The electron configuration is the number of electrons in each energy level of an element. The electron configuration of Li is, 1s2 2s1. The electron configuration of F is, 1s2 2s2 2p5.
1s2 2s2 2p6 3s2 3p3 is the electron configuration of element 15.
This chemical element is neon (Ne).
Lithium (Li) has the electron configuration 1s2 2s1.
Helium has the electron configuration 1s2
The electron configuration is the number of electrons in each energy level of an element. The electron configuration of Li is, 1s2 2s1. The electron configuration of F is, 1s2 2s2 2p5.
1s2 2s2 2p6 3s2 3p3 is the electron configuration of element 15.
1s2 2s2 2p2
Magnesium
Phosphorus has the above electron configuration. It has 15 electrons and protons.
Argon
Argon
That is the element phosphorous
3d11 is not possible, The element with the electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4 is Selenium (Se).