For example, the allotropes of carbon include diamond ( where the carbon atoms are bonded together in a tetrahedral lattice arrangement ), graphite ( where the carbon atoms are bonded together in sheets of a hexagonal lattice ), graphene ( single sheets of graphite ), and fullerenes ( where the carbon atoms are bonded together in spherical, tubular, or ellipsoidal formations ).

For example, all atoms with 6 protons in their nuclei are atoms of the chemical element carbon, and all atoms with 92 protons in their nuclei are atoms of the element uranium.

For example, water is a compound containing hydrogen and oxygen in the ratio of two to one, with the oxygen atom between the two hydrogen atoms, and an angle of 104. 5 ° between them.

For example, all carbon atoms contain 6 protons in their nucleus ; so the atomic number of carbon is 6.

For example, carbon can be found as diamond, which has a tetrahedral structure around each carbon atom ; graphite, which has layers of carbon atoms with a hexagonal structure stacked on top of each other ; graphene, which is a single layer of graphite that is incredibly strong ; fullerenes, which have nearly spherical shapes ; and carbon nanotubes, which are tubes with a hexagonal structure ( even these may differ from each other in electrical properties ).

For example, trace ( but detectable ) amounts of carbon-14 (< sup > 14 </ sup > C ) are continually produced in the atmosphere by cosmic rays impacting nitrogen atoms, and argon-40 (< sup > 40 </ sup > Ar ) is continually produced by the decay of primordially occurring but unstable potassium-40 (< sup > 40 </ sup > K ).

For the study of the mechanical behavior of solids and fluids these are assumed to be continuous bodies, which means that the matter fills the entire region of space it occupies, despite the fact that matter is made of atoms, has voids, and is discrete.

For example, a perfect crystal of diamond would only contain carbon atoms, but a real crystal might perhaps contain a few boron atoms as well.

For example, some alloys have a regular structure in which every other atom is a different species ; for illustration assume that type A atoms sit on the corners of a cubic lattice, and type B atoms sit in the center of the cubes.

For instance, in a perfect sheet of graphite ( graphene ) all atoms are in rings containing six atoms.

For instance, in ideally bonded amorphous silica all Si atoms have 4 bonds to O atoms and all O atoms have 2 bonds to Si atom.

For instance, dark bands in the light emitted by a distant star are due to the atoms in the star's atmosphere.

For instance, when atoms are irradiated by a source with a broad spectrum, distinct absorption lines will appear in the spectrum of transmitted radiation.

For example, an allyl group can coordinate to palladium in the η¹ mode ( only one atom of an allyl group attached to palladium ) or the η³ mode ( 3 atoms attached to palladium ).

For, with a single exception, nothing had happened to them.

For Tom Horn, it turned out, had a number of rancher and cowboy witnesses ready and willing to swear with straight faces that he had been in Bates Hole the day of the killing.

For a brief period each year, the rays of the sun are warm enough to melt some of the snows piled a mile deep at the base of the headwalls, and then the pinnacles glisten in the daytime at high noon, and billions of gallons of water begin their slow seepage under the glaciers and across the rockstrewn hanging valleys on their long, meandering journey to the sea -- running east past the sky-carving massifs of Gurla Mandhata and Kemchenjunga, then turning south and curling down through the jungles of Assam, past the Khasi Hills, and into Bengal, past Sirinjani and Madaripur, until the hard water of the melting snows mingles with the soft drainage of fields and at length fans out to meld with the teeming salt depths of the Bay of Bengal.

For several months now, Jack Carter, a big overgrown boy of fifteen with a fuzzy, pimpled face and greenish catlike eyes with a lot of red in them, had been haunted by a dream, a vision, of a Woman.

For Mr. Taylor's Images And Reflections she made some diaphanous tents that alternately hide and reveal the performer, and a girl's cape lined with grass.

For the family is the simplest example of just such a unit, composed of people, which gives us both some immunity from, and a way of dealing with, other people.

For several generations much fiction has appeared dealing with the steprelationship.

For the President had dealt with the matter humbly, in what he conceived as the democratic way.

'', and `` Too Marvelous For Words '' ( all with Richard Whiting ) ; ;

William Wimsatt and Cleanth Brooks, it seems to me, have a penetrating insight into the way in which this control is effected: `` For if we say poetry is to talk of beauty and love ( and yet not aim at exciting erotic emotion or even an emotion of Platonic esteem ) and if it is to talk of anger and murder ( and yet not aim at arousing anger and indignation ) -- then it may be that the poetic way of dealing with these emotions will not be any kind of intensification, compounding, or magnification, or any direct assault upon the affections at all.

For some time, despondency in some Northern quarters had been displayed in two ways -- an eagerness for peace and a dissatisfaction with Lincoln.

For if Serenissimus made the sign of the Cross with his right hand, and meant it, with his left he beckoned lewdly to any lady who happened to catch his eye.

For those little men with the short whiskers, shaven polls, and top knots Suvorov reserved a special esteem.

For some reason, none of them were impressed with the territorial capital.

For example, he captured some persons from York County, who with teams were taking to Philadelphia the furniture of a man who had just been released from prison through the efforts of his wife, and who apparently was helpless to prevent the theft of his household goods.

For as his companions gradually dissolve back into a state of primitive confrontation with elemental necessity, as they lose all the appanage of their acquired culture, he is overcome by the feeling that he is at last being confronted with the essence of mankind.

`` For six years my father had had to do too much commanding and convincing, '' writes the narrator, `` not to understand that man begins with ' the other ' ''.

For a dawning sense of illumination occurs in consequence of two events which, as so often in Malraux, suddenly confront a character with the existential question of the nature and value of human life.

In his recent book, Hurray For Anything ( 1957 ), one of the most important short poems -- and it is the title poem for one of the long jazz arrangements -- is written for recital with jazz.

For a particularly fabulous room which houses a collection of fine English Chippendale furniture, fabric wall panels were embroidered with a typically Chinese-inspired design of this revered Eighteenth Century period.

For the first time in history the entire world is dominated by two large, powerful nations armed with murderous nuclear weapons that make conventional warfare of the past a nullity.

`` For instance, regarding the fact that the Gross Committee issued two interim announcements to the press during its investigation.

For this reason, then I want to describe, first, two examples of the puritanical attacks: Stephen Gosson's The School Of Abuse, 1579, and his later Playes Confuted, published in 1582.

For some time the Communists honored the distinction between the Soviet zone of Germany and the Soviet sector of Berlin by promulgating separately the laws for the two areas.

For the States which maintain two separate agencies -- one for the vocational rehabilitation of the blind, and one for the rehabilitation of persons other than the blind -- the Act specifies that their minimum ( base ) allotment shall be divided between the two agencies in the same proportion as it was divided in fiscal year 1954.

For the last two years, this frontier of the arts has produced a number of so-called `` non-dramas '' which have left indelible, bittersweet impressions on the psyche of this veteran theatregoer.

For if it did, the plane of L and l' would contain two generators of Af, which is impossible.

For if such were the case, either the plane of the two lines would meet **zg in more than K points or, alternatively, the order of the image regulus of the pencil determined by the two lines would be too high.

For each of these lines meets Q in three points, namely two points on **zg and one point on one of the multiple secants.

For Athabascan, with a greater range of stems, the first two of five corresponding columns were identical, 1 and 2 stems ; ;

For the purposes of this discussion, the problem of relative prices is encompassed in these two variables, since GNP includes other prices.

For instance, there have been two Presidential Commissions on higher education since World War 2.

For example, he cites the following data from two studies on job satisfaction: in the first study, 85 per cent of professionals and executives, 64 per cent of white collar people, and 41 per cent of factory workers expressed satisfaction with their jobs ; ;

For purely inertial navigators, two techniques are available to accomplish the platform heading: Use of external or surveying equipment to establish proper heading ; ;

For example, the BBB has reported it was receiving four times as many inquiries about quack devices and 10 times as many complaints compared with two years ago.

For almost two months, the defendant and the world heard from individuals escaped from the grave about fathers and mothers, graybeards, adolescents, babies, starved, beaten to death, strangled, machine-gunned, gassed, burned.

For a time there were two factions on the campus fighting for possession of the student body.

For two hours they drove her from one strong point to another along the side of the Reef, trying to maneuver her onto the plain where they could get a good throw.

For a moment or two, both scenes are present simultaneously, one growing weaker, one growing stronger.

For two years his friend and cousin, Boisbriant, remained as acting governor and could do little to stem the Anglican advance.

For another second or two he gave in to the annoyance that was directed at himself ; ;