That's correct! Sulfur (S) is in the third row, so it has electrons in the third energy level. The first two levels are completely filled, giving 1s22s22p6 and it has six electrons in the third level, giving 3s23p4.
The question, with additive superscripts, would read "1s22s22p63s2", indicating an atomic number of 12, the element Magnesium (Mg).
these element has 2 electron in the valence shell and is magnesium of group 2
Aluminum has the configuration of 1s22s22p63s23p1
This element is phosphorus.
Phosphorus
Ar
Phosphorus
1s2s22p63s23p2
1s2 2s2 2p6 3s2 3p 4s2
The electron configuration of hassium is: [Rn]5f14.6d6.7s2.
The electron configuration of the element with the atomic number 39 (yttrium) is: [Kr]4d15s2.
The element with that electron configuration is Iron.
Sulfur (S) has the electron configuration 1s22s22p63s23p4.
1s2 2s2 2p6 3s2 3p 4s2
Magnesium
The electron configuration of hassium is: [Rn]5f14.6d6.7s2.
The electron configuration of the element with the atomic number 39 (yttrium) is: [Kr]4d15s2.
The element magnesium (atomic number 12) has the electron configuration of1s2 2s2 2p6, 3s2or the noble gas abbreviation [Ne] 3s2(see related link)The electron configuration for neutral magnesium (Mg) is 1s22s22p63s2. The ion, Mg2+, has two electrons fewer, so the outer two electrons are removed from the electron configuration. This changes the electron configuration to 1s22s22p6, which is the same electron configuration as the noble gas neon.
The element with that electron configuration is Iron.
The electron configuration of sulfur is [Ne) 3s2.3p4.
Sulfur (S) has the electron configuration 1s22s22p63s23p4.
1s2 2s2 2p6 3s2 3p3 is the electron configuration of element 15.
The electron configuration of phosphorus is [Ne]3s2.3p3.
The electron configuration of americium is [Rn]5f7.7s2.
Magnesium is the period 3 alkaline earth metal. Thus, its electron configuration is 1s2 2s2 2p6 3s2. The shorthand version of this is [Ne] 3s2 since neon's electron configuration is 1s2 2s2 2p6.