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 ... 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 103 1961 ...
... 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 illustrate periodically recurring trends in the ... are expected to contain a larger number of elements than the seventh period, as they are calculated to have an additional so-called g-block, containing 18 ...
... 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 ...
... 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 radioactive debris from the detonation of ... 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:
“Nature confounds her summer distinctions at this season. The heavens seem to be nearer the earth. The elements are less reserved and distinct. Water turns to ice, rain to snow. The day is but a Scandinavian night. The winter is an arctic summer.”
—Henry David Thoreau (1817–1862)
“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)
“The poem has a social effect of some kind whether or not the poet wills it to have. It has kinetic force, it sets in motion ... [ellipsis in source] elements in the reader that would otherwise be stagnant.”
—Denise Levertov (b. 1923)