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Bookmark or Share- How many valence electrons does phosphorus have? | SocraticAccording to the periodic table above, phosphorus belongs to Group 5A. Therefore, Its valence electrons should be 5. Let's check using the electron configuration: 1s^2 2s^2 2p^6 3s^2 3p^3 = 15 electrons = atomic number of P The outermost orbitals, 3s^2 3p^3, contains 5 electrons. Thus, valence electrons for P is 5.
- How do valence electrons affect reactivity? + Example - SocraticThe number of electrons in an atom's outermost valence shell governs its bonding behaviour. > The valence electrons are the electrons in the outermost electron shell of an atom. That is why elements whose atoms have the same number of valence electrons are grouped together in the Periodic Table. Generally, elements in Groups 1, 2, and 13 to 17 tend to react to form a closed shell ...
- Isotope Notation - Chemistry - SocraticIsotope notation, also known as nuclear notation, is important because it allows us to use a visual symbol to easily determine an isotope's mass number, atomic number, and to determine the number of neutrons and protons in the nucleus without having to use a lot of words. Additionally, N = A −Z. Example 1: What is the isotopic notation for ...
- How many electrons go on each ring according to the Bohr model?The Bohr model is a simplistic means of explains the placement of the subatomic particles of the elements of the periodic table. The Bohr model arrangement of electrons follows the same pattern as the periodic table. 2 elements in the first row, 2 electrons in the first orbit. 8 elements in the second row, 8 electrons in the second orbit.
- Quantum Numbers - Chemistry - Socraticm_l = magnetic number - tells us which orbital the e- is in. m_s = spin number - tells us if the electron is spin up or spin down. The quantum numbers for electron 1 (hydrogen) are: 1,0,0,+1/2. 2 (He): 1,0,0,-1/2. 3 (Li): 2,0,0,+1/2. 4 (Be): 2,0,0,-1/2. There is a lot of info you'll need to understand... - I'll recommend this video to help.
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