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It has 2 unpaired electrons and 8 empty electron levels.
An orbital is made up of 2 electrons and any orbitals left with only 1 electron is considered unpaired. For example, the element P, has an atomic mass of 15. So the electron configuration is 1s^2, 2s^2, 2p^6, 3s^2, 3p^3 (The exponents add up tp 15). Once you figure out the electron configuration, you fill up the corresponding orbitals with electrons, any left with one is considered unpaired. Since 1s can only hold 2 electrons, and P has 15, that's obviously filled and has no unpaired electrons. The same is for 2s which holds 2, 2p which holds 6, 3s which holds 2. However 3p can hold 6 electrons and in order for that to be filled up you would need to have an element of 18 electrons. So you fill up as much as you can in 3p by first adding 1 electron to each energy level. 3p has 3 energy levels and there are only 3 electrons left to distribute, so each of those energy levels only gets 1, because you have to fill them all with one before you can start adding a second. So since you are only able to fill one electron in each of the three energy levels of the 3p orbital, that leaves the orbital open for 1 more electron in each of its energy levels. So there are 3 unpaired electrons in P.
The element with 2 electrons in the second ring is helium. Helium has 2 electrons in its second energy level.
Yes, as it shares its two unpaired electrons with the two hydrogen atoms.
The role electrons play in stabilizing an atom is they balance out the charge of the protons. If an element has more protons than electrons, it has a positive, not neutral, charge, and vice versa. Unpaired electrons can cause an element to be chemically reactive and/or radioactive. Hope this helps!
You can determine the number of unpaired electrons in an element by examining its electron configuration. Unpaired electrons are found in the outermost energy level, and you can count them by looking for half-filled or singly occupied orbitals in the notation of the element.
In the element bromine (Br), there is only 1 unpaired electron. It has 7 valence electrons, so 3 pairs, plus an unpaired electron.
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Oxygen atoms contain exactly two unpaired electrons. This is because oxygen has 6 total electrons, with 2 in the first energy level and 4 in the second. Two of the electrons in the second energy level are unpaired.
Elements that are attracted to magnets are typically those that have unpaired electrons in their outermost energy levels. These unpaired electrons create a magnetic moment, which allows the element to be influenced by an external magnetic field. This attraction occurs because the magnetic field of the element aligns with the magnetic field of the magnet, resulting in a force that pulls the element towards the magnet.
There are zero unpaired electrons in a krypton (Kr) atom because it has a completely filled electron shell with 8 electrons in the outermost energy level.
No, strontium does not have unpaired electrons. It has an electron configuration of [Kr]5s2, meaning the outermost energy level (valence shell) is completely filled with 2 electrons.
Rhenium, with atomic number 75, has two electrons in its fifth energy level.
It has 2 unpaired electrons and 8 empty electron levels.
An orbital is made up of 2 electrons and any orbitals left with only 1 electron is considered unpaired. For example, the element P, has an atomic mass of 15. So the electron configuration is 1s^2, 2s^2, 2p^6, 3s^2, 3p^3 (The exponents add up tp 15). Once you figure out the electron configuration, you fill up the corresponding orbitals with electrons, any left with one is considered unpaired. Since 1s can only hold 2 electrons, and P has 15, that's obviously filled and has no unpaired electrons. The same is for 2s which holds 2, 2p which holds 6, 3s which holds 2. However 3p can hold 6 electrons and in order for that to be filled up you would need to have an element of 18 electrons. So you fill up as much as you can in 3p by first adding 1 electron to each energy level. 3p has 3 energy levels and there are only 3 electrons left to distribute, so each of those energy levels only gets 1, because you have to fill them all with one before you can start adding a second. So since you are only able to fill one electron in each of the three energy levels of the 3p orbital, that leaves the orbital open for 1 more electron in each of its energy levels. So there are 3 unpaired electrons in P.
12 are paired, 3 are unpaired To figure this out make a Bohr diagram! :)
Lithium atoms contain one unpaired electron. Two of the three total electrons in a lithium atom are paired in its lowest energy s orbital, which can contain only two.