So you’ve seen a periodic table and there are so many elements on there, but sometimes there are more, and sometimes there are less depending on which book or website you look at. so clever you is asking why that is. And the answer is, that scientists keep creating new elements. i think we are up to about 118 elements now, but only about 100 are actually fund naturally and not created in a lab.
The reason we don’t find all the elements created by scientists naturally, is because the become really unstable. After about 82 they start to get really unstable. Some of the newest ones above 110 don’t really exist for long – maybe a few seconds – then they break down to smaller elements.
When I was going to high school, there were 115 elements. Now there are 118 (as of 2013). All elements from atomic numbers 1 (hydrogen) to 118 (ununoctium) have been discovered, elements 113, 115 and 117 are the latest discoveries (yes scientists discovered 118 before 113 🙂 ) .
Of these 118, 1 to 98 exist naturally; the rest have only been synthesized in laboratories.
So you’ve seen a periodic table and there are so many elements on there, but sometimes there are more, and sometimes there are less depending on which book or website you look at. so clever you is asking why that is. And the answer is, that scientists keep creating new elements. i think we are up to about 118 elements now, but only about 100 are actually fund naturally and not created in a lab.
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The reason we don’t find all the elements created by scientists naturally, is because the become really unstable. After about 82 they start to get really unstable. Some of the newest ones above 110 don’t really exist for long – maybe a few seconds – then they break down to smaller elements.
0
When I was going to high school, there were 115 elements. Now there are 118 (as of 2013). All elements from atomic numbers 1 (hydrogen) to 118 (ununoctium) have been discovered, elements 113, 115 and 117 are the latest discoveries (yes scientists discovered 118 before 113 🙂 ) .
Of these 118, 1 to 98 exist naturally; the rest have only been synthesized in laboratories.
0