B. 1s22s22p63s23p64s23d5
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Chromium: [Ar]1s22s22p63s23p63d54s1
Manganese: [Ar]1s22s22p63s23p63d54s2
1s22s22p63s23p64s23d5
The element with that electron configuration is Iron.
The element that has a single electron in the 2p sublevel is boron. The electron configuration of Boron is 1s22s22p1.
An element's electron configuration determines its location (group) in the periodic table. It tells us how many valence electrons (s and p sublevel).
1s2 2s2 2p6 3s2 3p6 4s2 3d5
1s22s22p63s23p64s23d5
The element with that electron configuration is Iron.
The element that has a single electron in the 2p sublevel is boron. The electron configuration of Boron is 1s22s22p1.
An element's electron configuration determines its location (group) in the periodic table. It tells us how many valence electrons (s and p sublevel).
1s2 2s2 2p6 3s2 3p6 4s2 3d5
The element with that electron configuration has 4 electrons in the third level. There are 2 electrons in the 3s sublevel and 2 more electrons in the 3p sublevel. This means 4 valence electrons total. This element is silicon (Si, #14).
The electron configuration of sulfur is [Ne) 3s2.3p4.
Carbon is the group 14, period 2 chemical element. Its electron configuration is 1s2 2s2 2p2. Thus, carbon has 2 electrons in its 2p subshell.
The electron configuration for an atom of fluorine is [He]2s2.2p5.
Aluminum is the group 12, period three chemical element. It has an electron configuration of 1s2 2s2 2p6 3s2 3p1. That means that its 2p subshell is full, having 6 electrons.
Phosphorus has the above electron configuration. It has 15 electrons and protons.
Lawrencium is a trivalent chemical element.