CUBIC CRYSTALS

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" colspan=2 height=27 BGCOLOR="#006699" TEXT="#080000"> <div> <FONT SIZE="2" COLOR="#FFFFFF" FACE="Arial" ><B>CHEMISTRY SCHOOL</B></FONT><FONT SIZE="1" COLOR="#FFFFCC" FACE="Arial" ><B>   </B></FONT><A HREF="index.htm" TARGET="_top" TITLE="CHEMISTRY SCHOOL"><U>HOME PAGE - INDEX TO THE LESSONS</U></A>                              CUBIC SHAPED •  MOLECULAR CRYSTALS</div> <div> </div> </td> </tr><tr> <td valign="top" width=248 BGCOLOR="#66CCCC" TEXT="#080000"> <div>        THE MOLECULAR CRYSTALS</div> <div>                 <A HREF="crystals.htm" TARGET="_top" TITLE="WHAT ARE CRYSTALS?"><U>INTRODUCTION</U></A></div> <div> <I>> RECTANGULAR FACED CRYSTALS</I></div> <div> 1.<U> </U><U>CUBIC CRYSTALS</U></div> <div> 2. <A HREF="tetragonal_crystals.htm" TARGET="_top" TITLE="TETRAGONAL CRYSTALS"><U>TETRAGONAL CRYSTALS</U></A></div> <div> 3  <A HREF="orthorhomic_crystal.htm" TARGET="_top" TITLE="SIMPLE ORTHORHOMBIC CRYSTALS"><U>SIMPLE ORTHO-RHOMBIC</U></A> </div> <div> 4. <A HREF="top_centered_orthorhomic_crystals.htm" TARGET="_top" TITLE="TOP CENTERED ORTHORHOMBIC"><U>TOP CENTERED ORTHORHOMBIC</U></A></div> <div> 5. <A HREF="face_centered_crystals.htm" TARGET="_top" TITLE="FACE CENTERED ORTHORHOMBIC"><U>FACE CENTERED ORTHORHOMBIC</U></A> </div> <div> 6. <A HREF="equi_centric_orthorombic.htm" TARGET="_top" TITLE="EQUICENTRIC ORTHORHOMBIC"><U>EQUI-CENTRIC ORTHORHOMBIC</U></A></div> <div> <I>> TRIANGULAR, RHOMBOHEDRAL</I></div> <div> <I>   & HEXAGONAL CRYSTALS </I></div> <div> 1. <A HREF="trigonal_crystals.htm" TARGET="_top" TITLE="TRIGONAL CRYSTALS"><U>TRIGONAL CRYSTALS</U></A></div> <div> 2. <A HREF="tetrahedral_molecular_crystals.htm" TARGET="_top" TITLE="TETRAHEDRAL CRYSTALS"><U>TETRA-HEDRAL  CRYSTALS </U></A></div> <div> 3. <A HREF="hexahedral_crystals.htm" TARGET="_top" TITLE="HEXAHEDRAL CRYSTALS"><U>HEXA HEDRAL CRYSTALS</U></A></div> <div> 4. <A HREF="octa_hedral_crystals.htm" TARGET="_top" TITLE="OCTAHEDRAL CRYSTALS"><U>OCTA HEDRAL CRYSTALS</U></A></div> <div> 5. <A HREF="rhombohedral_crystals.htm" TARGET="_top" TITLE="RHOMBOHEDRAL CRYSTALS"><U>RHOMBOHEDRAL CRYSTALS</U></A></div> <div> 6. <A HREF="hexagonal_molecular_crystals.htm" TARGET="_top" TITLE="HEXAGONAL CRYSTALS"><U>HEXAGONAL CRYSTALS</U></A></div> <div> 7. <A HREF="parallelepiped_molecular_crystals.htm" TARGET="_top" TITLE="PARALLELEPIPED CRYSTALS"><U>PARALLELEPIPED CRYSTALS</U></A></div> <bR> </td> <td valign="top" height=453 BGCOLOR="#66CCCC" TEXT="#080000"> <div> <I>CUBIC CRYSTALS</I></div> <div> <TABLE BORDER="1" CELLPADDING="4" CELLSPACING="0" WIDTH="489" BORDERCOLORLIGHT="#993380" BORDERCOLORDARK="#993380" FRAME="BOX" RULES="ALL" ALIGN="BOTTOM" HSPACE="0" VSPACE="0" BGCOLOR=#FFFFFF > <tR> <tD VALIGN=TOP COLSPAN=2 HEIGHT= 15 WIDTH="469"><div> CUBIC SHAPED MOLECULAR CRYSTALS</div> </tD> </tR> <tR> <tD VALIGN=CENTER COLSPAN=2 HEIGHT= 139 ><NOBR><div>  1. HAVE AN EQUAL NUMBER OF ATOMS </div> <div>      ON EACH SIDE AND THEIR</div> <div>  2. WIDTH, HEIGHT & DEPTH ALL EQUAL</div> <div>  3. THE ANGLES AT ALL THE CORNERS</div> <div>       ARE 90° PERPENDICULAR</div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 15 ><NOBR><div> AN OVERALL VIEW OF THE CRYSTAL</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="228"><div> TOP, BOTTOM & SIDE VIEWS</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 116 WIDTH="239"><div> <IMG SRC="10206d6f0.gif" border=0 width="109" height="111" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> </tD> <tD VALIGN=CENTER WIDTH="228"><div> <IMG SRC="101f68680.gif" border=0 width="104" height="104" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 15 WIDTH="239"><div> A SIMPLE CUBIC CRYSTAL</div> </tD> <tD VALIGN=TOP><NOBR><div> A VIEW OF THE TOP & ALL SIDES</div> </NOBR></tD> </tR> <tR> <tD VALIGN=CENTER HEIGHT= 171 WIDTH="239"><div> <IMG SRC="10229a990.gif" border=0 width="154" height="153" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> </tD> <tD VALIGN=CENTER WIDTH="228"><div> <IMG SRC="10218b8b0.gif" border=0 width="139" height="139" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 52 ><NOBR><div> A FACE CENTERED CUBIC CRYSTAL</div> <div> HAS AN ATOM AT THE CENTER OF EACH</div> <div> OF THE SIX SIDES OF THE CUBE</div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> A VIEW OF THE TOP & ALL SIDE,</div> <div> NOTE THAT THEIR IS AN ATOM</div> <div>  IN THE EXCACT CENTER.</div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 224 ><NOBR><div> <IMG SRC="101dc4db0.gif" border=0 width="196" height="219" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> </NOBR></tD> <tD VALIGN=CENTER><NOBR><div> <IMG SRC="1024a0960.gif" border=0 width="160" height="150" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <div> EQUI-CENTRIC CUBIC CRYSTALS</div> <div> HAVE 8 ATOMS EQUI-DISTANT </div> <div> FROM  THE CENTER</div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 15 ><NOBR><div> A EQUI-CENTRIC CUBIC CRYSTAL</div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> A VIEW OF THE TOP & ALL SIDES</div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 127 WIDTH="239"><div> <IMG SRC="1027837a0.gif" border=0 width="131" height="122" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> </tD> <tD VALIGN=CENTER WIDTH="228"><div> <IMG SRC="10287b740.gif" border=0 width="123" height="116" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 52 ><NOBR><div> A BODY CENTERED CUBIC CRYSTAL,</div> <div> HAS AN ATOM IN THE EXACT CENTER</div> <div> OF THE MOLECULAR CRYSTAL.</div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> A VIEW OF THE TOP & ALL SIDES,</div> <div> THIS TYPE OF CRYSTAL IS USED IN </div> <div> CRYSTAL RECEIVERS & MICROWAVES</div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 174 ><NOBR><div> <IMG SRC="102db5a90.gif" border=0 width="181" height="169" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> </NOBR></tD> <tD VALIGN=CENTER><NOBR><div> <IMG SRC="102c999a0.gif" border=0 width="153" height="154" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 71 ><NOBR><div> A BODY CENTERED</div> <div> EQUI-CENTRIC CUBIC CRYSTAL</div> <div> HAS EIGHT EQUALLY SPACED ATOMS</div> <div> AROUND THE CENTER OF THE CRYSTAL</div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> A VIEW OF THE TOP & ALL SIDES</div> </NOBR></tD> </tR> </TABLE></div> <div>     <A HREF="cubic_crystals_m.htm" TITLE="CUBIC CRYSTALS"><U>BACK TO TOP</U></A></div> <bR> </td> </tr></table></body>