UTF-8
Atomic Structure: Isotopes and radioactivity.
240233207
1
1
org.concord.modeler.text.LineIcon750.060101015<html>
<head>
</head>
<body>
<center>
<font color="#FFFFFF" size="7" face="Verdana, Arial, Helvetica, sans-serif"><strong>Building
Atoms</strong> </font>
</center>
</body>
</html>
-59a2d4
1
1
org.concord.modeler.text.LineIcon750.085101015<html>
<head>
</head>
<body marginheight="5">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td>
<img src="atomMainIdea.png" width="98" height="58">
</td>
<td>
<font size="4" face="Verdana, Arial, Helvetica, sans-serif">What is
an isotope and why are some of them radioactive?</font>
</td>
</tr>
</table>
</body>
</html>
-15235a
1
1
org.concord.modeler.PageTextBox
750.0
30.0
<html>
<head>
</head>
<body background="subHeadingBackground.png">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td>
<img src="atomsBullet.png" width="33" height="23">
</td>
<td>
<font color="#a65d2c" size="5" face="Verdana, Arial, Helvetica, sans-serif"><strong>Atomic
Structure: Isotopes and Radioactivity</strong></font>
</td>
</tr>
<tr>
<td colspan="2">
<img src="rule.png" width="18" height="6">
</td>
</tr>
</table>
</body>
</html>
false
1
org.concord.modeler.PageTextBox
750.0
150.0
<html>
<head>
</head>
<body>
<font face="Verdana, Arial, Helvetica, sans-serif" size="4">If two atoms
are both carbon atoms, then you can be sure that they both have six
protons. However, there are two other particles making up an atom:
electrons and neutrons. By varying one of these particles you can change
the atom into another form of carbon atom. Each form of carbon (or any
other atom) is called an <strong>isotope</strong>. In the model below, the
name of the isotope is written below the symbol (<em>ex</em>.
"hydrogen-1.") </font>
<p>
<font size="4" face="Verdana, Arial, Helvetica, sans-serif">All elements
have at least one stable isotope, while other isotopes of that element
are radioactive, so an indicator of radioactivity has been added to the
model below. </font>
</p>
</body>
</html>
false
5.0
1
org.concord.mw2d.activity.AtomContainer
page5$0.mmlfalsefalse
org.concord.modeler.PageTextBox
250.0
328.0
<html>
<head>
<style type="text/css">
<!--
.style6 { color: #990000 }
.style5 { font-weight: bold }
-->
</style>
</head>
<body>
<table align="center" cellpadding="0" border="1" cellspacing="0">
<tr>
<td style="background-color: #FFFFFF" colspan="3" align="center">
<font size="4" face="Verdana, Arial, Helvetica, sans-serif"><strong>Build
An Atom<br><input script="script:mw:1:
set %protons round(1);
set %neutrons round(0);
set %electrons round(1);
reset;
run;" value="reset to hydrogen-1" name="Submit" type="submit"></strong></font>
</td>
</tr>
<tr>
<td align="right" style="background-color: #B9C8E9">
<font face="Verdana, Arial, Helvetica, sans-serif" size="3">electrons:</font>
</td>
<td style="background-color: #B9C8E9">
<input script="script:mw:1: set %addElectron 1; set %updateNeeded 1;" value="add" name="Submit2" type="submit">
</td>
<td style="background-color: #B9C8E9">
<input script="script:mw:1: set %removeElectron 1; set %updateNeeded 1;" value="remove" name="Submit3" type="submit">
</td>
</tr>
<tr>
<td align="right" style="background-color: #E3BDBE">
<font face="Verdana, Arial, Helvetica, sans-serif" size="3">protons:</font>
</td>
<td style="background-color: #E3BDBE">
<input script="script:mw:1: set %addProton 1; set %updateNeeded 1;" value="add" name="Submit22" type="submit">
</td>
<td style="background-color: #E3BDBE">
<input script="script:mw:1: set %removeProton 1; set %updateNeeded 1;" value="remove" name="Submit32" type="submit">
</td>
</tr>
<tr>
<td align="right" style="background-color: #E2E2E2">
<font face="Verdana, Arial, Helvetica, sans-serif" size="3">neutrons</font>:
</td>
<td style="background-color: #E2E2E2">
<input script="script:mw:1: set %addNeutron 1; set %updateNeeded 1;" value="add" name="Submit23" type="submit">
</td>
<td style="background-color: #E2E2E2">
<input script="script:mw:1: set %removeNeutron 1; set %updateNeeded 1;" value="remove" name="Submit33" type="submit">
</td>
</tr>
</table>
<p align="left" style="padding-left: 10">
<span class="style6"><strong><font face="Verdana, Arial, Helvetica, sans-serif" size="3">When
building atoms pay close attention to the isotope symbol and the name
underneath. To understand the naming system consider this: hydrogen-1
and hydrogen-2 are the same element but different isotopes. </font></strong></span>
</p>
</body>
</html>
false
5.0
1
org.concord.modeler.PageTextBox
750.0
40.0
<html>
<head>
</head>
<body>
<font face="Verdana, Arial, Helvetica, sans-serif" size="4">The element
carbon is a mixture of three isotopes <a href="script:page:0:message modelDisc.html">commonly
found in nature</a>: carbon-12, carbon-13, and a tiny dash of carbon-14.
Use the model to make these isotopes and answer the questions below.</font>
</body>
</html>
false
5.0
1
org.concord.modeler.PageMultipleChoice
false
8
362
230
<html>
<head>
</head>
<body marginheight="5" marginwidth="5" bgcolor="rgb(230, 230, 230)">
<font size="4" face="Arial, Helvetica, sans-serif"><strong>What is
different and what is the same between these carbon isotopes? </strong></font><strong><font color="red" size="4" face="Arial, Helvetica, sans-serif">(check
all that apply)</font></strong>
</body>
</html>
true
true
the mass number is the same
the atomic number is the same
the mass number is different
the atomic number is different
the number of protons is the same
the number of protons is different
the number of neutrons is the same
the number of neutrons is different
1 2 4 7
-373738
Line
org.concord.modeler.PageMultipleChoice
true
3
382
230
<html>
<head>
</head>
<body marginheight="5" marginwidth="5" bgcolor="rgb(230, 230, 230)">
<font size="4" face="Arial, Helvetica, sans-serif"><strong>Scientists use
the fact that living things have a lot of carbon in them. When they die,
the radioactive isotope breaks down over time, turning into other
elements. By seeing how much of the radioactive carbon is left you can
tell how old something is. Which one of these isotopes of carbon is
radioactive and can be used for carbon dating?</strong></font>
</body>
</html>
true
carbon-12
carbon-13
carbon-14
2
-373738
Line
5.0
1
org.concord.modeler.PageTextArea
750
140
<html>
<head>
</head>
<body marginheight="5" marginwidth="5" bgcolor="rgb(230, 230, 230)">
<font size="4" face="Arial, Helvetica, sans-serif"><strong>Explain with a
complete sentence the relationship between the mass number of an atom and
its number of protons, neutrons, and electrons. Can you make this into a
mathematical expression?</strong></font>
</body>
</html>
false
Line
5.0
1
org.concord.modeler.PageTextBox
750.0
210.0
<html>
<head>
</head>
<body marginheight="10" marginwidth="10">
<font size="6" face="Verdana, Arial, Helvetica, sans-serif">Assignment:</font>
<p>
<font size="4" face="Verdana, Arial, Helvetica, sans-serif">On a
separate piece of paper, write down <strong>all</strong> the stable
isotopes of all the elements from hydgrogen to neon. Don't whine - there
are only a few isotopes for each element that are <strong>not</strong>
radioactive. Make a table that includes element symbol, number of
protons, number of neutrons, and number of electrons to make that
isotope neutral. There should be 20 total isotopes.</font>
</p>
<p>
<font size="4" face="Verdana, Arial, Helvetica, sans-serif">Now graph
the number of neutrons vs. the number of protons for each stable isotope
on Microsoft Excel using the instruction sheet. Protons should be on the
x-axis, neutrons on the y-axis. Add a line of best fit. Title your graph
"The Band of Stability." Print your graph to hand in.</font>
</p>
</body>
</html>
-111112
Raised Bevel
5.0
1
org.concord.modeler.PageTextArea
750
120
<html>
<head>
</head>
<body marginheight="5" marginwidth="5" bgcolor="rgb(230, 230, 230)">
<font size="4" face="Arial, Helvetica, sans-serif"><strong>What is the
general rule for creating an atom with a stable nucleus (one that is NOT
radioactive)?</strong></font>
</body>
</html>
false
Line
5.0
1
org.concord.modeler.PageTextBox
750.0
32.0
<html>
<head>
</head>
<body marginheight="0" marginwidth="0" background="navBarBottomBackground.jpg">
<table border="0" id="Table_01" cellspacing="0" cellpadding="0" width="100%">
<tr>
<td colspan="2">
<img height="6" width="14" src="navBarBottomColorBar.gif">
</td>
</tr>
<tr>
<td width="33%">
<img height="26" width="8" src="navBarBottomLeftMargin.jpg">
<img height="26" width="28" src="page5.jpg">
</td>
<td align="center" width="33%">
<a href="../Building Atoms/page4.cml"><font><img height="26" border="0" width="60" src="prev.jpg">
</font></a><font><a href="../Building Atoms/page6.cml"><img height="26" border="0" width="59" src="next.jpg">
</a></font>
</td>
<!-- <td align="right">
<img height="26" width="54" src="page.jpg">
<a href="index.cml"><font><img height="26" width="46" border="0" src="index.jpg">
</font></a><font><a href="page1.cml"><img height="26" width="28" border="0" src="page1.jpg">
</a><a href="page2.cml"><img height="26" width="28" border="0" src="page2Selected.jpg">
</a><a href="page3.cml"><img height="26" width="28" border="0" src="page3.jpg">
</a><a href="page4.cml"><img height="26" width="29" border="0" src="page4.jpg">
</a><a href="page5.cml"><img height="26" width="28" border="0" src="page5.jpg">
</a><a href="page6.cml"><img height="26" width="28" border="0" src="page6.jpg">
</a><a href="page7.cml"><img height="26" width="28" border="0" src="page7.jpg">
</a><a href="page8.cml"><img height="26" width="29" border="0" src="page8.jpg">
</a><a href="page9.cml"><img height="26" width="28" border="0" src="page9.jpg">
</a><img height="26" width="7" src="navBarBottomRightMargin.jpg">
</font> </td> -->
<td align="right" width="30">
<img height="26" width="7" src="navBarBottomRightMargin.jpg">
</td>
</tr>
</table>
</body>
</html>
false