University:
California State University, Northridge
Course:
CHEM 107 | Fundamentals of Chemistry (GT-SC2)
Academic year:

2023
Views:

293

Pages:

3
Author:

Pricilia A

Bond Ion Ionic bonds are bonds that occur due to the transfer of electrons from one person to another atom to atom other. Bond ion formed between atom Which releasing electrons (metal) with atoms capturing electrons (not metal). Metal atoms , after releasing electrons turn into positive ions . Meanwhile, nonmetal atoms , after receiving electrons, turn into ions negative . Between these ions of opposite charge, an attraction occurs electrostatic) Which called bond ion (bond electrovalent). Ionic bonds are relatively strong bonds. At room temperature, all compound ion form substance congested crystal with structure certain. With using symbols Lewis, formation NaCl depicted as following. .. .. Na × + C._ .. l . Na+ + ×. C. NaCl l .. NaCl have structure Which shaped cube, in where each ion Na + surroundedby 6 Cl – ions and each ion Cl – surrounded by 6 Na + ions . Cell units NaCl ion Cl – ion Na + Cell units NaCl Figure 1 Part of a giant crystal lattice from sodium chloride. Compound ion can is known from a number of nature, between other: 1. Represents substance congested with point melt And point boiling Which relatively tall. Asexample, NaCl melt on 801 °C. 2. Fragile, so that destroyed If hit. 3. The melt deliver electricity. 4. The solution in water can deliver electricity. Example other formation bond ion as following. a. Formation MgCl 2 Mg (Z = 12) And Cl (Z = 17) have configuration electron as following. - Mg : 2, 8, 2 - Cl : 2, 8, 7 Mg can reach configuration gas glorious with let go 2 electron, while Cl captures 1 electron. Mg atoms turn into ionsMg 2+ , whereas atom Cl become ion Cl – . - M g (2 , 8 , 2 ) M g 2 + (2 , 8 ) + 2 e – (configuration electron ion Mg 2+ The same with neon) - C l (2 , 8 , 7 ) + e – C l – (2 , 8 , 8) (Cl ion electron configuration – same as argon) Ion Mg 2+ And ion Cl – Then join form compound with formulaMgCl 2 . With use symbol Lewis, formation MgCl 2 can drawnright as following. .. .C..l .. .. ..C .. l × + Mg × + .. .C..l .. . .. l.×C .. MgCl 2 b. Bond between atom 12 Mg And 8 O in MgOElectronic configuration Mg and O is: Mg : 2, 8, 2 (take off 2 electron) O : 2, 6 (catch 2 electron) Atom O will pair 2 electron, whereas atom Mg Also will pair 2 electron. × . .O .. . .. .. Mg × Mg2+ + 2e– Mg O Picture 2. Configuration electron Mg And O. O ×. O MgO c. Ionic bonds at 19 K and 8 O in K 2 OConfiguration electron: K : 2, 8, 8, 1 (let go 1 electron) form K + O : 2, 6 (accept 2 electron) form O 2–2 K ++ _ O 2– KO d. Bond ion on Fe (electron valence 3) with Cl (electron valence 7)form FeCl 3 Fe have electron valence 3 will form Fe 3+ Cl have electron valence 7 will form Cl –F e 3 + + 3 Cl – FeC l Elements Group Electron Valence Type Element ShapingIon HE IIA IIIA VA VIA VIIA 1 2 3 5 6 7 metal metal metal nonmetal nonmetal nonmetal 1+ 2+ _ 3+ 3– 2– 1–

Bond Ion Study Notes

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