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Each shell can contain only a fixed number of electrons: the first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on. The general formula is that the nth shell can in principle hold up to 2(n 2) electrons.
Feb 20, 2014 · The 3d, 4d etc., can each hold ten electrons, because they each have five orbitals, and each orbital can hold two electrons (5*2=10). Thus, to find the number of electrons possible per shell. First, we look at the n=1 shell (the first shell). It has: The 1s orbital; An s-orbital holds 2 electrons. Thus n=1 shell can hold two electrons.
- Shells and orbitals are not the same. In terms of quantum numbers, electrons in different shells will have different values of principal quantum nu...
- The pattern of maximum possible electrons = $2n^2$ is correct. Also, note that Brian's answer is good and takes a different approach. Have you lear...
- The first shell can carry up to two electrons, the second shell can carry up to eight electrons. The third shell can carry up 18 electrons, but it...
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The first shell (of all atoms) has 1 subshell of s-orbitals containing 1 s orbital. This means that the first shell can hold 2 electrons. The second shell has 2 subshells: 1 s-orbital and 3 p-orbitals. This means that the second shell can hold 8 total electrons. Every orbital is a shape (that can be determined by a trigonometric function I ...
- If the Bohr model is an inaccurate representation of electron's movement, why is it so universally a...Because in Bohr’s model for hydrogen atom we consider only Coulombic interactions between one proton and one electron. It cannot be extended for ot...
- How can you determine the number of outer shell electrons based on the full electron configuration?I'll try to explain with the help of an example. Consider Sodium (Na) Its electronic configuration is 1s2, 2s2, 2p6, 3s1 The largest value of the P...
- I'm confused about all the 1s2 2s2 and 2p6. It's hard for me to understand, I was wondering if you c...The 1s is the first orbital electron shell and it is closest to the nucleus. The 2n is the second shell. It consists of the 2s and 2p shells. The 3...
- In the second last paragraph, I don't really get why because of the d subshell having more energy, a...I am not sure where the confusion is. Argon has a full outer shell of electrons already. It will not have a d-subshell
- How do scientists figure this out? Do we have microscopes powerful enough to view atoms and observe ...No, it can't be figured out using microscopes. Most of it is based on theory worked out using a lot of maths. Experimental observations, such as th...
- How much space does electrons take upOverall, the electrons are much smaller than the protons and neutrons. But, they take up more space when you think about how they move. They are co...
- Can Hydrogen lose its only valence electron? Can an element exist without electrons?Hydrogen can lose its one electron and became an ion, or the hydrogen cation H^(+). However, it is so reactive that it does not exist for long befo...
Aug 18, 2021 · This first shell has only one subshell (labeled 1s) and can hold a maximum of 2 electrons. This is why there are two elements in the first row of the periodic table (H & He). Because the first shell can only hold a maximum of 2 electrons, the third electron must go into the second shell.
May 9, 2024 · Higher energy shells can hold more electrons. The first shell can only contain two electrons, the second eight and the third eighteen. Electrons in the same shell have the same amount of energy. The general rule stating the number of electrons present in a shell is 2n 2, where ‘n’ stands for the number of shells; for example, K-shell = 1, L ...
Example \(\PageIndex{1}\): Calculating the number of electrons in a shell. How many electrons can the first energy shell hold? 2 (1) 2 = 2 electrons. What about the second energy shell? 2 (2) 2 = 8 electrons . Figure \(\PageIndex{1}\): A Bhor's model can be used to diagram the location of electrons in each energy shell for an atom. Notice that ...
-the first number is the number of shell; -the letter is the type of orbital; -the index means how many electrons the orbital contains. Therefore, 1s^2 means that there is orbital s with 2 electrons in shell 1 . 2s^1 is s orbital with 1 electon in shell 2. I'm not very good at explaining, but I hope you got it!
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- Sal Khan
