2007-03-23 19:13:29 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
According to the Chemistry Periodical Table of Elements, there is currently 118. Now, numbers 104 to 118 are only in existence within a laboratory and created by man. They have very, very short lives.
2007-03-23 19:18:20 · answer #1 · answered by Ellie W 3 · 1⤊ 0⤋
Both previous questions are wrong. The answer is 90. If the question read "...dies man have" then they might be right. Naturally occurring elements number from Atomic Numbers 1 to 92, but don't include 43, technetium, and another element with an atomic number in the upper 80s or low 90s. Also, some of the higher man-made elements have been discredited recently due to an unethical scientist, so anything over (about) 115 is clearly wrong..
2007-03-24 04:01:08 · answer #2 · answered by Amphibolite 7 · 0⤊ 1⤋
117 CONFIRMED
2007-03-23 19:17:26 · answer #3 · answered by superiorsarin 2 · 0⤊ 0⤋