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Metalloids
These elements have characteristics common to metals and non-metals. For example: Arsenic, tin, bismuth e..
Position of Metals and Non-metals in the Periodic Table
(with the exception of hydrogen) that are found to the right on the Periodic Table i.e., groups IIIA, IVA and VA. The non-metallic character of these elements increases from top to the bottom of the group. For example, in group VA the first and second members are non-metals, the..
bound. OK, elements with low average valence electron energy, and here I'm saying below 11 electron volts, these are good electron donors. And, we call these in simple English, metals. And, it turns out that about 75% of the periodic table falls into this category. So, the vast majority of elements in the periodic table are metals. And, at the other extreme, we have elements with very high value, elements with high average valence electron energy. Well, we just did the calculation for oxygen ...
Question : I have to do a project for science class. I tried counting from different pictures of periodic tables but i always get different numbers =(. So I kinda have three questions...
How many metals are there in the periodic table?
How many metalloids are there in the periodic table?
How many non-metals are there in the periodic table?
Please help!!!!
Answer : The reason you got different numbers when you counted them is due to the adding of new elements over the years. On the most recent periodic table there are 118 elements total. There are 91 metals, 7 metalloids, and 19 noon metals. If your teacher disputes that there is 118 total elements. Tell him to go to wikipedia.com and search periodic table. There he will find the most recent table. Also on your project, if you want to blow your teacher away. Note that tthere is a single undiscovered element. That is sort of the missing link in the table. Also, yo could state what elements are what (solid, liquid, gas, unknown). If you want to see his jaw drop you can even list the elements natural occurrence. You can get this info from wikipedia. Its all listed under the table. Hope this helps:).. More from Yahoo Answers
Answer : The reason you got different numbers when you counted them is due to the adding of new elements over the years. On the most recent periodic table there are 118 elements total. There are 91 metals, 7 metalloids, and 19 noon metals. If your teacher disputes that there is 118 total elements. Tell him to go to wikipedia.com and search periodic table. There he will find the most recent table. Also on your project, if you want to blow your teacher away. Note that tthere is a single undiscovered element. That is sort of the missing link in the table. Also, yo could state what elements are what (solid, liquid, gas, unknown). If you want to see his jaw drop you can even list the elements natural occurrence. You can get this info from wikipedia. Its all listed under the table. Hope this helps:).. More from Yahoo Answers
Question : What are the differences between metals, non-metals, and metalloids? How do they help us in our everyday lives?
Answer : Most elements are metals. They are typically shiny, good conductors of heat and electricity, have a high density, and only melt at high temperatures. Metals are ductile and malleable, so their shape can be easily changed into thin wires or sheets. Metals will corrode, gradually wearing away like rusting iron. Nonmetals, are very different from metals. Their surface is dull and they are poor conductor of heat and electricity. As compared to metals, they have low density and will melt at low temperatures. The shape of a nonmetal cannot be changed easily as they tend to be brittle and will break. Metalloids have properties of both metals and non-metals. Some of the metalloids, such as silicon and germanium, are semi-conductors. This means that they can carry an electrical charge under special conditions. This property makes metalloids useful in computers and calculators ... More from Yahoo Answers
Answer : Most elements are metals. They are typically shiny, good conductors of heat and electricity, have a high density, and only melt at high temperatures. Metals are ductile and malleable, so their shape can be easily changed into thin wires or sheets. Metals will corrode, gradually wearing away like rusting iron. Nonmetals, are very different from metals. Their surface is dull and they are poor conductor of heat and electricity. As compared to metals, they have low density and will melt at low temperatures. The shape of a nonmetal cannot be changed easily as they tend to be brittle and will break. Metalloids have properties of both metals and non-metals. Some of the metalloids, such as silicon and germanium, are semi-conductors. This means that they can carry an electrical charge under special conditions. This property makes metalloids useful in computers and calculators ... More from Yahoo Answers