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Chemistry: 5.6 Metalloids 102 Views
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Description:
We know, metalloids totally sound like alien robots that shred it on electric guitars...but they're actually substances with some properties of metals and non-metals. We'll learn all about them in today's video.
Transcript
- 00:04
Larry and Mary Mermelstein can't wait to usher their first child into the world.
- 00:09
In the meantime there's so much anticipation.
- 00:12
Will it be a metal, or a non-metal?
- 00:16
Mary finally completes the birthing process...
- 00:20
and the doctor proudly announces that the newest addition to the Mermelstein family is...
Full Transcript
- 00:25
a metalloid!
- 00:27
Well, Mary passes out. Larry drops everything he's holding. (Thank goodness he wasn't holding the baby.)
- 00:34
And they begin sobbing, "how could this happen?"
- 00:37
Well before the Mermelsteins fall into too deep of a panic...
- 00:41
...the doctor explains to them that there's nothing wrong with being a metalloid.
- 00:46
In fact, there are metalloids all over the world co-existing peacefully with metals and non-metals alike.
- 00:51
It doesn't do much to relieve the tension in Larry, who is already wondering how the adoption process works.
- 00:56
Or Mary, who is still unconscious.
- 00:59
So the doctor pulls down a chart and shows the Mermelsteins...
- 01:04
...where the metalloids fit in the bigger picture.
- 01:07
There are certain elements that have some properties of metals and other properties of non-metals.
- 01:19
Larry still isn't too pleased.
- 01:22
Especially because, according to him, half of those sound like Shakespearean villains.
- 01:26
But the doctor presses on, stressing the fact that metalloids...
- 01:31
...also known as semi-metals, or semi-conductors (hint hint)...
- 01:35
...have more personality than either metals or non-metals.
- 01:39
Some metalloids like silicon look like a metal, but don't conduct electricity very well...
- 01:44
...which is a definite non-metal trait.
- 01:46
Same deal with reactivity.
- 01:49
Some of the time, metalloids behave like metals and react quite strongly.
- 01:54
But other times, they just sit there like a bump on a log.
- 01:58
They're fascinating, versatile creatures, and any parent would be lucky to have one.
- 02:03
Larry, finally realizing he just might be able to appreciate his little bundle of half-metal joy after all,
- 02:09
well he's softening up to the idea.
- 02:11
He's still a bit worried this will mean
- 02:13
that he and his child will never be able to have a game of catch together.
- 02:17
But as the doctor points out, it's not likely any of them have hands.
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