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technetium (Tc), 43
promethium (Pm), 61
neptunium (Np), 93
plutonium (Pu), 94
americium (Am), 95
curium (Cm), 96
berkelium (Bk), 97
californium (Cf), 98
einsteinium (Es), 99
fermium (Fm), 100
mendelevium (Md), 101
nobelium (No), 102
lawrencium (Lr), 103
rutherfordium (Rf), 104
dubnium (Db), 105
seaborgium (Sg), 106
bohrium (Bh), 107
hassium (Hs), 108
meitnerium (Mt), 109
darmstadtium (Ds), 110
roentgenium (Rg), 111
copernicium (Cn), 112
6 other elements have been confirmed to exist, but the names and symbols given are provisional as no names for the elements have been agreed upon by IUPAC.
ununtrium (Uut) 113
ununquadium (Uuq) 114
ununpentium (Uup) 115
ununhexium (Uuh) 116
ununseptium (Uus) 117
ununoctium (Uuo) 118
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Wiki User
∙ 13y ago
Wiki User
∙ 11y agoIt is also possible to produce a new element by fusion. For example Copernicium (atomic number 112) was first made by firing accelerated 70Zn (atomic number 30)nuclei at a target of 208Pb (atomic number 82). A single atom of 277Cn was made in this manner on Feb 9, 1996 in Darmstadt, though more Cn atoms have been made since.
Technetium is sometimes regarded as a synthetic element, but it is created in extremely small quantities in nature by the spontaneous fission of 238U.
Wiki User
∙ 11y agoIn chemistry, a synthetic element is a chemical element that does not occur naturally on Earth, and can only be created artificially. So far 20 synthetic elements have been created (those with atomic numbers 99-118).
Wiki User
∙ 15y agoThe following elements have not been observed in the nature, and have been made by humans: americium, curium, berkelium, californium, einsteinium, fermium, mendelevium, nobelium, lawrencium, rutherfordium, dubnium, seaborgium, bohrium, hassium, meitnerium, darmstadtium, roentgenium, ununbium, ununtrium, ununquadium, ununpentium, ununhexium, ununoctium.
Wiki User
∙ 9y agoToday natural elements are considered the elements up to the atomic number 98; but the elements with atomic numbers 43, 61 and 93-98 exist only in extremely traces, as a curiosity in uranium deposits. Of course they can be obtained also by man made nuclear reactions.
Consequently man made elements must be considered only the elements with the atomic number over 98: some examples are meitnerium, bohrium, flerovium.
Wiki User
∙ 11y agoNow (January 2013) 97 chemical elements are considered as natural and 21 as man made.
The synthetically prepared elements are (with name, symbol, atomic number):
californium (Cf), 98
einsteinium (Es), 99
fermium (Fm), 100
mendelevium (Md), 101
nobelium (No), 102
lawrencium (Lr), 103
rutherfordium (Rf), 104
dubnium (Db), 105
seaborgium (Sg), 106
bohrium (Bh), 107
hassium (Hs), 108
meitnerium (Mt), 109
darmstadtium (Ds), 110
roentgenium (Rg), 111
copernicium (Cn), 112
ununtrium (Uut), 113
flerovium (Fl), 114
ununpentium (Uup), 115
livermorium (Lv), 116
ununseptium (Uus), 117
ununoctoium (Uno), 118
Wiki User
∙ 15y agoelements after uranium atomic number 92 are man made.
Wiki User
∙ 11y agoExamples: californium, dubnium, flerovium, livermorium, etc.
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What is the name of a mineral made from one metal element?
Native Metal
Who made copper?
The element, 'Copper' has been known to man for so many thousands of years, that we simply do not know who named it. 'Copper' is not the original name, though. The original accepted name was 'Kupros' in Greek, and 'Cuprum' in Latin. This is why the abbreviation for copper is "Cu".
Is symbol for an element always the first letter of its name?
Every element has a one or two (or three, if the element doesn't have an official name yet) letter symbol.
Is there a element that is made two or more elements?
No. An element is made of only one kind of atom. A compound is made of two or more elements.
Substance made of only one kind of atom?
an element is a substance rested with only one and ONE substance
What is the name of a mineral made from one metal element?
Native Metal
Is bromine natural occring or man made?
Bromine is a naturally occurring element. One of the halides.
Who made the hydrogen element?
Hydrogen is not a man-made element but one that exists in nature naturally. It was discovered by Henry Cavendish in in 1766. So the question of "who made the hydrogen" atom is more philosophy then science.
What do you call a substances that are made up of only one kind of atom?
A substance that is made up of only one atom is called a pure substance. A pure substance is also called an element on the Periodic Table.
What is the tiniest man made object on earth?
einstienium, it was created in a lab and it is an element. so its one atom
What is the name for elements are only made up of one atom?
The answer is Helium, made up of one molecule of that element. He1 = 1
What is the proper name for a man made lake?
One name often used is Reservoir.
Is botulinum man made or is it from an element on the periodic chart?
Botulinum can be made by men or by a certain kind of bacteria. The remainder of this question, however, signals a serious misunderstanding of chemistry: Everything tangiblemade by man or any other life form consists of one or moreelements on the periodic chart. Botulinum is a compound, containing more than one element. It therefore can not be made from an* element but can be made from a small selection of elements.___________________________________*Note that "an" is an article that can not correctly modify a plural subject.
What is a man-made element with one-hundred-forty-eight neutrons?
Many isotopes have 148 neutrons; example: mendelevium -249.
Is oxygen made up of one element?
Oxygen is an element.
What is iron man's heart called?
If you mean that round, later triangle, advice in his chest, it is a so-called arc reactor. The round one was made with palladium (which in Iron Man 2 poisoned his body so he replaced it), the triangle one with an element that Tony "re-discovered" (I am not quite sure about the name though).
What is the number of atoms of each element?
each element has one atom of the element's name
