Some articles on elements, element:
... Synthetic elements are radioactive and decay rapidly into lighter elements—possessing half-lives so short, relative to the age of the Earth (which formed 4.54 billion years ago), that any atoms of ... Atoms of synthetic elements only occur on Earth as the product of atomic bombs or experiments that involve nuclear reactors or particle accelerators, via nuclear fusion or neutron absorption ... For synthetic elements, the isotope depends on the means of synthesis, so the concept of natural isotope abundance has no meaning ...
... The following elements do not occur naturally on Earth ... All are transuranium elements and have atomic numbers of 99 and higher ... Element name Chemical Symbol Atomic Number First definite synthesis Einsteinium Es 1952 ... Fermium Fm 1952 ... Mendelevium Md 1955 ... Nobelium No 1966 ... Lawrencium Lr 1961 ... Rutherfordium Rf 1966 ... (USSR ...
... Action-adventure game Many games fuse platform game fundamentals with elements of action-adventure games such as The Legend of Zelda or with elements of RPGs ... Typically these elements include the ability to explore an area freely, with access to new areas controlled by either the gaining of new abilities or through the use of inventory items ...
... There are currently seven periods in the periodic table of chemical elements, culminating with atomic number 118 ... If further elements with higher atomic numbers than this are discovered, they will be placed in additional periods, laid out (as with the existing periods) to ... Any additional periods are expected to contain a larger number of elements than the seventh period, as they are calculated to have an additional so-called g-b ...
... The first element discovered through synthesis was technetium—its discovery being definitely confirmed in 1936 ... The first discovered synthetic elements were einsteinium and fernium in 1952, by a team of scientists led by Albert Ghiorso in 1952 while studying the ... The naming and credit for discovery of those elements remained unresolved for many years but eventually shared credit was recognized by IUPAC/IUPAP in 1992 ...
Famous quotes containing the word elements:
“Let us have a fair field! This is all we ask, and we will be content with nothing less. The finger of evolution, which touches everything, is laid tenderly upon women. They have on their side all the elements of progress, and its spirit stirs within them. They are fighting, not for themselves alone, but for the future of humanity. Let them have a fair field!”
—Tennessee Claflin (1846–1923)
“psychologist
It is through friendships that teenagers learn to take responsibility, provide support, and give their loyalty to non- family members. It is also in teenage friendships that young people find confidants with whom to share thoughts and feelings that they are not comfortable sharing with their parents. Such sharing becomes one of the elements of true intimacy, which will be established later.”
—David Elkind (20th century)
“Three elements go to make up an idea. The first is its intrinsic quality as a feeling. The second is the energy with which it affects other ideas, an energy which is infinite in the here-and-nowness of immediate sensation, finite and relative in the recency of the past. The third element is the tendency of an idea to bring along other ideas with it.”
—Charles Sanders Peirce (1839–1914)