what is the difference from a particle as in an a electron vs matter as in a molecule?
151430
A proton, neutron, and electron is what makes up an atom.  a molecule however is defined as two or more atoms linked by chemical bonds which are linked atom.  Covalent bonds consist of shared pairs of electrons Electronegativity: unequal sharing of electrons...U can find more info on askjeeves.com
403152
Subatomic particles are under the influence of totally different forces than the large objects that are affected by gravity, etc.  The forces affecting subatomic particles act ONLY under extremely short distances and despite the efforts of Einstein and everybody since him, those forces cannot be resolved or integrated with gravity, etc.\n\nIn other words, you are comparing two totally different things: apples and elephants.
965795
There are more protons than electrons. Protons are plus. Electrons are minus. In hydrogen ion, there is one proton and zero electrons!
358467
because electrons mass is insignificant to the mass of the nucleus of the atom. omitting the electron mass is prctical because there is soo much space between electrons and other atoms in a molecule at any given time that 99.9% of the density that effects the behavior of a moving molecule come from the nucleus itself.
253918
Molecules are made of atoms
37199
a molecule is a group of atoms, or, in some cases, a single atom.  an atom is made of protons, electrons, and neutrons.\n\na cell is the most basic unit of life.
853466
Equivalence.\n\nPhysics had long treated many things of being of entirely different natures.  Matter was concrete.  Absolute.  It followed laws of motion and the like.  Energy, on the other hand, was ethereal, zinging around and through the matter.  It is not ridiculous that physicists had thought this way - this is much of our experience of the physical world.\n\nE=mc^2, however, suggests that this is just not so.\n\nLiterally, it states that matter -IS- energy.  And conversely that energy is matter.  There is no 'special' status for one or the other.  Baseballs have a wavelength like any chunk of energy, and energy must occur in packets like any chunk of mass.  While quite simple in its statement, it is pretty staggering in its implication.\n\nFor example, it is used to explain how stars run (fusion turns minute amounts of mass into energy), explain the expansion of the universe (free energy turns into particle pairs which exert an outward pressure on space itself), and why photons which have no rest mass, can nonetheless push things around with impact (their speed and energy GIVE them mass).\n\nIf you want to use the equation itself, make sure your units match up.  If you use kilograms for mass and measure the speed of light in metres per second, energy will be in joules.  Hope that helps!
78979
None, sound is a wave not a particle. Sound is just a wave of vibrations travelling through atoms.
1184515
I think that your question concerns normal particles which are common objects (like a ball?) compared to quantum particles which are atoms...  \n\nIf that is the question:  the nano-particles themselves are bound to each other by electronic forces -- forces that are electron-based.  They are so very small that the tiny force pulls of the atmosphere around us can make a difference.  Think of the ocean -- not a good comparison, but you know that the tides are caused by the gravitational forces of the moon?  That is no force that you can see, but it is effective...\n\nPut simply, larger particles are not affected by the electro-magnetic forces as strongly as nano-particles.  The quantum properties come from that effect.
76751
If we define the matter as any thing has mass then photons is matter.\nThis is although the rest mass of the photon is zero but it has a mass while running at speed of light
13297
Atoms have a nucleus ( composed of protons and neutrons) and a cloud of electrons. The number of the different components varies between different elements.\n\nElectrons can only have specific energy levels in an atom - that is the energy is not continious but quantized. This is different from, say, the solar system, because a planet could theoretically be in any orbit. But we know from quantum mechanics (and many, many experiments) that electons can only occupy certain "orbits."\n\nSometimes an electron can be bumped into a higher orbit (the higher orbits have less energy, because they are not as tightly bound) or kicked out of the atom altogether. If a second electron moves into the spot it will release energy as it falls into that level.\n\nHydrogen is the easiest element to study. The nucleus is a single proton, and it can have only one electron. The different energy levels can be illustrated like this:\nhttp://hyperphysics.phy-astr.gsu.edu/hbase/hyde.html#c2\n(though in reality electrons don't travel on nice orbits)\n\nIf an electron in the second lowest level does a "quantum leap" to the very lowest, it will emit energy - light - at a very specific frequency. In this case 656 nanometers, which is red. If, on the other hand, an electron falls from the 3rd level down to the 1st level the emitted light is blue.\n\nA "spectrum" will show all of these distinct levels, with the brighter ones being the most common. This shows the spectrum of hydrogen with a diagram of the quantum leaps:\nhttp://hyperphysics.phy-astr.gsu.edu/hbase/hyde.html#c4\n\nIn other atoms it becomes more complex, not every jump is allowed, and in the precense of a magnetic field a "fine structure" is seen in the spectrum, as some of the main lines look double.\n\nThe result of all of this is that each different atom will give a different characteristic spectrum. So, you can use this to identify different elements in anything from crime scene samples to distant galaxies.
897762
Element talks about the chemical identity.  How one atom is not like another.\nAtom talks about the particular entities.\n\nElement is a general term while atom is a specific term.\nSo you can speack of the element so and so and be describing the substance and its properties for example as that element is in all the universe.
909717
Do you mean 2000 times the mass?  Sounds like a proton.  An electron has a mass of 9.109 x 10^-31 kg while a proton has a mass of 1.673 x 10^-27 kg, about 1837 times as great.  An electron has a negative charge and a proton has a positive charge.  Despite the difference in mass, the electrical charges are equal in magnitude.
937266
1)electron ...(also negative meson)\n2)the atom is the basic (many atoms make molecule and so on)\n3)polymer (the most famous are protiens)
964379
The individual electrons do not travel in planes or anything resembling a planetary orbit.  Each electron associated with an atom "occupies" a space whose shape depend on how many other electrons are associated with the same atom.  "Occupies" is in quotes because it is only an approximation of the situation.  In a sense, any particular electron inhabits the entire universe, but with a much higher probability of being found in certain regions than in others.  If you made a really sophisticated graph of the probable locations of the electron, using an infinitely large clear crystal, and staining it some shade of black, with the darkness/opacity of the black depending on the probability of finding the electron there, you would have a picture of the space "occupied" by the electron, sometimes called an electron cloud.  For the single atom around a hydrogen atom, the cloud would be a spherical blob, very dark around the nucleus, getting somewhat transparent further from the nucleus, and getting fainter, but never completely clear as you moved further from the nucleus.  The shape of the clouds around a helium atom are somewhat like two tear drops, with their pointy ends near the nucleus.  The shapes of the clouds are different for different elements, and they are changed when an atom is part of a molecule with other atoms.  But the clouds are never planar.
1115839
No, the electron's charge is not its energy content, the charge is the charge which is a fundamental quantity (and the same for all electrons.) The volt is not a unit of force, it is a unit of electrical potential, with units of J/C (joules/coulomb). A volt represents a potential difference that will impart one joule of energy to one coulomb of charge passing through it. An electron volt is a unit of energy, defined as the amount of energy imparted to one electron passing through a potential difference of one volt. Since the electron's charge is −1.60217653*10^-19 C, the energy so imparted is equal to 1.60217653*10^-19 J.
126671
Molecules always refer to atoms that have covalent bonds (like a water molecule). Stuff with ionic bonds are just ionic compounds.\n\nMore info: http://misterguch.brinkster.net/covalentcompounds.html