Selenium
Phosphorus has 3 electrons in the 4p sublevel.
apparently 8. according to another website. :)
If an element has less than four valence electrons, it will tend to lose its valence electrons and form cations. If an element has more than four valence electrons, it will tend to gain electrons and form anions. An element that has four valence electrons will tend to form covalent bonds rather than ionic bonds.
The 4p sublevel can hold a maximum of 6 electrons. Each p orbital within the 4p sublevel can hold up to 2 electrons, and there are 3 p orbitals in the 4p sublevel (2 electrons per orbital * 3 orbitals = 6 electrons).
An element with an atomic number of 14, such as silicon, would have 4 valence electrons. Valence electrons are the electrons in the outermost energy level of an atom, which corresponds to the group number of the element on the periodic table.
Phosphorus has 3 electrons in the 4p sublevel.
Selenium or Se
The element in Period 4 that has two electrons in the p sublevel is germanium (Ge). It has the atomic number 32 and is located in group 14 of the periodic table. In its electron configuration, germanium has the outermost electrons in the 4s and 4p sublevels, with the 4p sublevel containing two electrons.
It is Beryllium ,Be
Sc i believe is the one u trying to answer.. woop a 2nd chem question.. lucky i take chem haha :P
apparently 8. according to another website. :)
TPN is same as 4P MCB TPN means Three Pole and Neutral - four pole MCB. 4P is four pole MCB
* Ground state electron configuration:[Ar].3d10.4s2.4p6 so...4s and 4p
it is the very common atom Carbon. --- The element could be carbon, if the four electrons are in the valence shell. However, if it is total of four electrons, then the element will be beryllium
If an element has less than four valence electrons, it will tend to lose its valence electrons and form cations. If an element has more than four valence electrons, it will tend to gain electrons and form anions. An element that has four valence electrons will tend to form covalent bonds rather than ionic bonds.
Krypton has four electron shells and a total of 8 valence electrons. The electron configuration of krypton is [Ar] 3d¹⁰ 4s² 4p⁶, indicating that the outermost shell (n=4) contains 8 electrons in the 4s and 4p orbitals. This full outer shell makes krypton a noble gas, contributing to its chemical stability.
1s2 2s2 2p6 3s2 3p6 4s2 3d8 5s2 4p2 Edit by Dr.J. How can this have 5s2 electrons? This configuration is incorrect. Germanium is a p-block element and so has 4p valence electrons, not 5s.