That is the unimaginably short time scale on which processes such as the motion
of an electron in an atom can be studied.
Physicists from Ludwig - Maximilians - Universitaet (LMU) in Munich have developed an attosecond electron microscope that allows them to visualize the dispersion of light in time and space, and observe the motions
of electrons in atoms.
So comparing the positions
of electrons in atoms at different spots on walls, windows and floors could provide a rough snapshot of where radioactive material was once stored and how strong it was, researchers report online July 3 in Health Physics.
The results give researchers a potential new, solid - state tool for «attosecond science,» which explores processes like the motions
of electrons in atoms and the natural vibrations of molecules.
Through calculations and computer simulations, Atwater's team demonstrated that the trick to upping a material's thirst for light is to create more «optical states» for the light to occupy — which are like slots that can accept light with a certain wavelength, similar to the energy levels
of electrons in atoms.
A group of Michigan State University researchers specializing in quantum calculations has proposed a radically new computational approach to solving the complex many - particle Schrödinger equation, which holds the key to explaining the motion
of electrons in atoms and molecules.
I understand (to some extent) how individual atoms can radiate specific frequency spectral lines, as a result of energy level transitions
of an electron in that atom.
Not exact matches
To produce EVERY molecule, every
atom, every proton, neutron, and
electron in the universe, only a source
of immense «power» or energy source would create everything.
An
atom is a point
in space (unless you consider the shape
of the
electron shells).
if you want hydrogen 1 proton, 1 neutron, 1
electron and you have 1
atom of hydrogen; the hard part is it would cost us more energy than we can afford at this point
in our technological stage to accomplish such a feat.
Thus, at the lowest level,
electrons tend to unite and converge
in the
atom;
atoms converge by molecularization, crystallization; molecules unite by polymerization; cells unite by conjugation, reproduction, association; nerve ganglions concentrate and localize to form a brain by what might be called a process
of cephalization; the higher animal groups form colonies, hives, herds, societies, etc.; man socializes and forms civilizations as foci
of attraction and organization.
In a sense there is just as much discontinuity
of patterning between an
electron and an
atom or an
atom and a molecule as there is between a molecule and a living cell.
Let us think
of an
electron microscope giving the situation
of a target T with an
atom A
in the target with an
electron coming
in and being scattered by the
atom.
Von Neumann says that as a result
of this interaction with the
electron, the
atom is left
in a certain state.
For example, when physicists explain the electrical conductivity
of metals
in terms
of the «band structure»
of the energy levels
of the
electrons in a crystal lattice
of atoms, to which
of the four causes does that correspond?
And since everything
in the universe acts according to a definite pattern (
electrons whiz round the nucleus
of an
atom and humans desire happiness - even if they are mistaken
in what they do to try and get happy - and acorn trees produce acorns) then it is safe to say that there must be an intelligence moving the universe.
The
atom must be considered as a whole (
in the wave - function
of a 2 -
electron atom, even the separate identity
of the
electrons is lost).
He says that
in physics the classes
of things, e.g.,
atoms, protons,
electrons, etc., are very homogeneous.
Doris, since your science is so infallible and only deals
in facts prove how an
electron does what it does and how it is that it is similar but different
in atoms of different elements.
In this sense an atom is more complex than an electron, a molecule more complex than an atom, and a living cell more complex than the highest chemical nuclei of which it is composed, the difference depending (on this I insist) not only on the number and diversity of the elements included in each case, but at least as much on the number and correlative variety of the links formed between these element
In this sense an
atom is more complex than an
electron, a molecule more complex than an
atom, and a living cell more complex than the highest chemical nuclei
of which it is composed, the difference depending (on this I insist) not only on the number and diversity
of the elements included
in each case, but at least as much on the number and correlative variety of the links formed between these element
in each case, but at least as much on the number and correlative variety
of the links formed between these elements.
Every year we read more
of the unimaginably minute particles such as
electrons, protons, positrons, mesons, and others named and described
in quick succession as science advances, which form the outer particles and the inner nuclei
of the
atom.
In my view this arises from the striving
of partly completed
atoms and molecules to complete their forms by capturing
electrons.
Accordingly, he understands
electrons and
atoms in terms
of «an analogy between the transference
of energy from particular occasion to particular occasion
in physical nature and the transference
of affective tone, with its emotional energy, from one occasion to another
in any human personality.
An analogous argument is quite applicable to other levels
of organization such as that
of electrons and protons
in atoms.
It is clear from Bohm's writings that an aspect
of the implicate order
of the
electron and the
atom is the subjective aspect
of these entities; what they are
in themselves to themselves.
Nearing the very core
of such awesomely huge black holes therein resides a centrality where
atoms collide with such force that they release many
of their
atoms»
electrons resulting
in a wave
of energy giving rise to particle jets being emitted from the said black hole's core.
The
atom, the
electron, the proton, the cell, whatever sort
of brick or combination
of bricks, is the same be it located
in the centre
of the sun or
in the centre
of a human brain.
At one point Leclerc suggests that compounds only come about when the acting is fully reciprocal (NPE 311), but there may well be more reciprocity among persons
in an intensive communal experience than between the components
of some compound, e.g., between some neutron
in the interior
of the nucleus
of an
atom and one
of its
electrons.
We will be concerned, however, with mental models
of systems which for various reasons can not be represented by replicas, such as the economy
of a nation, the
electrons in an
atom or the biblical God.
Lest he be misunderstood, he says that panpsychism does not for once question the real existence
of such entities as
atoms or
electrons but merely insists that such individuals must «feel» and «will» He does not shrink from the view that
electrons «enjoy» their existence and deliberately alter their orbits
in order to obtain vivid contrasts and thus avoid being bored.30
Certainly consciousness does not exist at the level
of atoms and
electrons, nor does reflective self - awareness seem to appear
in evolution until the human species comes onto the scene.
But there is good reason for holding that mentality
in the form
of some sort
of rudimentary «feeling» may be present at the level
of the energy - events that give rise to
electrons and
atoms.
It is by virtue
of their physical properties that
electrons and other particles combine
in different ways to produce
atoms, and so it is with
atoms that find themselves
in juxtaposition and then combine to produce molecules.
There was a time when the integration
of electrons into
atoms was the fighting frontier
of progressive integration
in the universe.
Since
in the rest
of the world besides ourselves processes
of «taking account
of» are going on, be it
in electrons or
atoms or cells, then it is logical to suppose that this subject - object relationship involves subjectivity for these other entities.
From the point
of view
of an
electron there are light years
of space between one
atom in my body and the next.
We (and science
in general) start by accepting the real existence
of certain scientific objects —
atoms,
electrons, gravitation, light, etc..
The history
of science provides many examples
of this combination
of analogy and innovation
in the creation
of models which were useful
in generating theories.4 The «Bohr model»
of the
atom,
in which «planetary»
electrons revolve
in orbits around a central nucleus, resembles the solar system
in certain
of its dynamical properties; but the key assumption
of quantum jumps between orbits had no classical parallel at all.
For those who enjoy chemistry: Free radicals are an unpaired
electron in orbit around the nucleus
of an
atom.
For example, the presence
of hydrogen and methane are clues that the chemical environment
of the fluid
in which the diamond crystallized was one
in which the metal
atoms could easily gain
electrons and disengage from carbon
atoms.
Atoms in the corona are so hot that they give up many of their electrons — iron atoms have been known to lose up to half of their original c
Atoms in the corona are so hot that they give up many
of their
electrons — iron
atoms have been known to lose up to half of their original c
atoms have been known to lose up to half
of their original count.
Each hydrogen
atom, made up
of just a single proton and
electron, can be found
in two slightly different states: a higher energy state
in which the
electron and proton essentially spin
in the same direction, and a lower energy state
in which they spin
in opposite directions.
There are basically two types
of lines, those produced by collisions between the
atoms or ions and the
electrons in the surrounding gas, which are called collision lines, and which are very bright for elements such as oxygen, nitrogen and neon, and lines which are produced when ions capture free
electrons, which are called recombination lines, and which are bright only for those gases with the highest abundances
in the interstellar medium: hydrogen and helium.
They show the beauty
of the
atom, including its orbiting
electrons in the colors
of red, orange, and light green.
Invented
in 1960, lasers use an external «pump,» such as a flash lamp, to excite
electrons within the
atoms of a lasing material — usually a gas, crystal, or semiconductor.
These timekeepers are based on precise knowledge
of the frequency
of specific transitions between defined energy levels
in the
electron shells
of certain
atoms.
Now, new observations
of a particular wavelength
of infrared light from that galaxy betrays the presence
of oxygen
atoms that have two
electrons missing (
in the smaller region depicted
in green), researchers report online today
in Science.
After all, particle accelerator searches over the last two decades had narrowed the range
of possible masses for the Higgs; if it existed at all, it had to weigh
in at between 114 billion and 143 billion
electron volts or GeV (1 GeV is slightly more than the mass
of a hydrogen
atom).
These rules predict, for example, how
electrons orbit a nucleus
in an
atom, and how an
atom can absorb photons, particles
of light.
As its sharp - tipped probe scans a surface, the extent to which
electrons «tunnel» between the tip and surface indicates changes
in height caused by the presence
of atoms.