When the nucleus of an atom is unstable, because of an unbalanced number of protons and neutrons, a redistribution occurs sooner or later, and the atom decomposes spontaneously and emits one of several kinds of radiations.
The weight, or mass, of an atom is due chiefly to its protonsand neutrons because the mass of its electrons is negligible.
Isotopes Atoms of the same element, that is, atoms with the same number of protons and electrons, may vary slightly in mass because of having different numbers of neutrons.
Matter is made up of subnuclear particles--electrons, protons and the like.
The size ratio of these particles to protons is somewhat like the ratio of an individual proton to a large star.
The digital readout at the bottom of Bessie's console showed the computer's prediction of fifteen seconds remaining until the expected flood of protons began to arrive from the sun.
Brute strength alone would not cause the protons to tip.
The fields generated in these coils are strong enough to process all the protons so that their axis of spin is brought into alignment.
To have produced the complete alignment of both the protons and the electrons within a mass might have been attempted before.
Heisenberg might have explained it, this is a device to confuse confusion by aligning certainties and creating uncertainties in the protons of this innocent block of plastic.
The atoms are made of electrons grouped around nuclei which, in turn, are formed by close groupings of protons and electrons.
Now we know something about the names of the important kinds of atoms and can take up again the question of how they are formed by protons and electrons.
By proper number of electrons I mean proper for the number of protonswhich it has.
You remember that in an atom there are always just as manyprotons as electrons.
Between an electron and any other electron or between two protons or between an electron and a proton there is usually a relatively enormous distance.
An atom or molecule has neither more nor less protons than electrons.
There is enough space so that lots of other electrons or protons could be fitted in between if only they were willing to get that close together.
If an ion has more electrons than protons it is negative; if the inequality is the other way around it is positive.
How any atom behaves so far as associating with other groups or atoms will depend upon what sort of a game its own electrons and protons are playing.
The plate doesn't want them for all the rest of its atoms have just the same number of protons as of electrons.
These games differ in the number of electrons and protons who play and in the way they arrange themselves.
Right at the center there is a small closely crowded group which contains all the protons and two of the electrons.
Protons don't like to associate with other protons but take quite keenly to electrons.
They are going to get as far away from each other as they can, for they are nothing but protons; andprotons don't like to associate.
Over the next 30 years, isotopes were formed that contained more and more protons in the nucleus and therefore had higher and higher atomic numbers.
This was particularly true in the conversion of hydrogen to helium; that is, the conversion of the individual protons of 4 separate hydrogen nuclei into the 2-proton—2-neutron structure of the helium nucleus.
These deadly weapons, which worked by the simple process of killing the attraction between the protons and electrons, could, in the briefest time, reduce anything to less than dust.
The sugarfoot must have flicked it on and sent the blue-white beam in a sweeping curve that turned everything it touched into hot protons and electrical energy.
Any moment now, we'd all be separated into hot protons and flying clouds of electronic sparks.
The number of protons in an atom’s nucleus determines an element’s identity; the number of neutrons usually determines whether or not that atom is radioactive or nonradioactive (stable).
Confine your paraffin between tungsten walls, and you'll stop the secondary protons as well as the neutrons.
That ship that attacked us, attacked with a neutron gun, a gun that shot neutrons through the hull of our ship as easily as protons pass through open space.
In Arret the protonswere negative, and the electrons positive.
On Earth all atoms are composed of small heavyprotons that are always positive in charge, and larger lighter electrons that are always negative.
Out of any large number of neutrons, half have turned into protons in about 12 minutes.
Illustration: The bombardment of lithium-7 with protons was the first nuclear reaction caused by man-made particles.
If a nucleus was made up of x protons and y neutrons, then the atomic number was equal to x and the mass number to x + y.
In the absence of electrons, what kept the protons clinging together?
To their surprise, protons were knocked out of the paraffin.
Their device, called an “electrostatic accelerator”, produced protons that were sufficiently energetic to initiate nuclear reactions.
It is the number of protonsplus neutrons in the nucleus.
Before neutrons could be used, however low-energy and however sure to hit, they had to be produced; and in order to produce neutrons they had to be knocked out of nuclei by bombardment with high-energy protons or some other such method.
We have electrons and protons of matter, and photons of light.
Now we know that the mass of protons and electrons will attract other protons and electrons, and hold them near--as in a stone, or in a solar system.
The Bevatron, a modern offspring of the first cyclotron, accelerates protonsto 99.
Cockcroft passed an electric discharge through hydrogen gas, thereby removing electrons from the hydrogen atom; this left a beam of protons (i.
A few of the protons scatter off the carbon target and are detected by counters at E and D.
The purpose of this experiment was to detect the spin directions of protons as they are knocked out of a liquid hydrogen target by a [pi]-meson beam.
The protons then escape into the acceleration chamber through a hole in the ion-source housing.
An alpha particle is the nucleus of a helium atom and is made up of two protons and two neutrons; it carries two positive charges.
Once inside, the protons are accelerated by the dee potential.
From the detection of such events, the spin directions (polarization) of the recoil protons can be analyzed.
A few of the incoming mesons scatter, knocking protons out of the liquid hydrogen.
An alpha particle is identical with the nucleus of a helium atom and has two neutrons and two protons bundled together.
Loss of an alpha particle from a nucleus lowers the mass number (the total of protons and neutrons) of the parent nucleus by four and the atomic number (the number of protons) by two; the number of neutrons also is reduced by two.
The atomic number of an atom is equal to the number of protons in its nucleus.
Positrons usually are emitted by nuclei that have a greater proportion of protons than is normal for the number of neutrons.
Isotopes of a given element have an identical number of protons but different numbers of neutrons in their nuclei.
The instability of the nuclei of the heavy atoms is related to the ratio of the number of neutrons to the number of protons in the nuclei.
They clearly understood the combination of these electrons and protons into atoms.
They generate an extremely short carrier wave, like the Millikan cosmic ray, by recombining some of the electrons and protons of their disintegrating metal, and upon this wave they impose a pure heat frequency of terrific power.
That wall of matter is made of a double layer of protons lying one against the other.
The wire has a current density so huge that the atoms are destroyed, and the protons and electrons coalesce into pure radiant energy.
There was air about the ship, and the air instantly exploded into atoms of a different sort, threw off their electrons, and were raised to the temperature at which no atom can exist, and became protons and electrons.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "protons" in a variety of sentences. We hope that you will now be able to make sentences using this word.
