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Electrons interact with ions
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An electron carries a negative charge. In fact, a unit of negative charge is defined as the charge on an electron. (This is in fact identical, except for the sign, to the positive charge on a proton.) Ions can be negative or positive. Ions attract or repel electrons aiming them toward different areas of a screen.
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<b><font size="5" face="Trebuchet MS">Electrons interact with ions</font></b>
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<font face="verdana" size="4">A hydrogen atom has 1 proton and 1 electron.
Predict where it will go in a beam of electrons and then, using the model,
test your prediction </font>
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<html><font size=4 face=Verdana>Upwards</html>
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<font face=Verdana size=4>What rule have you discovered while exploring how atoms can direct electron beam?
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