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REPORT SHEET Compounds and9 Their Bonds A. Ions: Transfer of Electrons Elemeat A

ID: 1027513 • Letter: R

Question

REPORT SHEET Compounds and9 Their Bonds A. Ions: Transfer of Electrons Elemeat Atomic 1. Electron2. Electron-3. Loss or 4. Electron Gain ofConfigura Number ConfiguraDot loale6. Symbo Charge of lom of lon tion of Atom Symbel Electroms of lon Sodium 11 Nitrogen7 Aluminum 13 Chlorine 17 Calcium20 Oxygen 8 122p1 Na B. Ionic Compounds and Formulas 1. Physical properties Density Melting Point Compound Sodium chloride, NaCl Appearance 2. Formulas of ionic compounds Formula Positive IonNegative lon Name Lithium iodide Li Aluminum oxide AI Calcium sulfide Magnesium bromide Potassium nitride Lil fiuoride 105 Copyright © 2014 Pearson Education, Inc.

Explanation / Answer

A.

Element Atomic Number Configuration Symbol loss/gain of electron Configuration Ionic Charge Symbol Ion Name of Ion

Sodium 11 1s22s22p63s1 Na* loss 1 e-   1s22s22p6 1+ Na+ Sodium ion

Nitrogen 7  1s22s22p3 N* loss of 3 e- 1s22s2    3- N3- Nitride

Aluminium 13 1s22s22p63s23p1 Al* loss of 3e-  1s22s22p6   3+ Al3+   aluminium

Chlorine 17  1s22s22p63s23p5   Cl* Gain of e-  1s22s22p63s23p6 1- Cl- Chloride

Calcium 20 1s22s22p63s23p64s2   Ca* Loss of 2e-   1s22s22p63s23p6 2+ Ca2+ Calcium

Oxygen 8 1s22s22p4  O* gain of 2e- 1s22s22p6 2- O2- Oxide

B

1 Sodium Chloride White solid 2.16b/cm3 801oC

2

Lithium iodide Li+ I- LiI

Aluminum oxide Al3+ O2- Al2O3

Calcium sulfide Ca2+ S2- CaS

Magnesium Bromide Mg2+ Br- MgBr2

Potassium nitride K+ N3-  K3N

Sodium Fluoride Na+ F- NaF