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1. Elements in the middle of the periodic table are known as these kinds of metals...
-rare earth metals
-noble
-transition
-naturally

2. These gases are considered inactive. They do not react with other elements...
-rare earth metals
-noble
-transition
-naturally

3. For convenience, these are placed at the bottom so the periodic table does not become too wide to be represented in chart form...
-rare earth metals
-noble
-transition
-naturally

4. There are 92 elements, from hydrogen to uranium that occur in this manner...
-rare earth metals
-noble
-transition
-naturally

2007-12-09 09:21:01 · 4 answers · asked by Anonymous in Science & Mathematics Chemistry

4 answers

1. rare earth metals
2. noble
3.transition
4. naturally

2007-12-09 09:25:32 · answer #1 · answered by klaryuk 3 · 0 0

Actually its:

1.Transition
2.Noble
3.Rare Earth Metals
4.Naturally

2007-12-09 09:29:34 · answer #2 · answered by Anonymous · 0 0

1. Transition
2. Noble
3. Rare earth metals
4. False! Element No. 43 Technetium has no stable isotopes and does not occur in nature. Element No. 61 Promethium has no stable isotopes and does not occur in nature.

2007-12-09 09:31:56 · answer #3 · answered by steve_geo1 7 · 0 0

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2016-11-15 01:31:31 · answer #4 · answered by Anonymous · 0 0

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