Protons and Electrons
Atoms are the smallest particles that contain the characteristics of an element. So, five atoms could be a Hydrogen atom, a Carbon atom, a Neon atom, a Potassium atom, and a Helium atom.
The atom is the smallest part of matter that represents a particular element. For quite a while, the atom was thought to be the smallest part of matter that could exist. But in the latter part of the 19th century and early part of the 20th, scientists discovered that atoms are composed of certain subatomic particles and that, no matter what the element, the same subatomic particles make up the atom. The number of the various subatomic particles is the only thing that varies. Scientists now recognize that there are many subatomic particles (this really makes physicists salivate). But in order to be successful in chemistry, you really only need to be concerned with the three major subatomic particles: Protons Neutrons Electrons
Elements are the simplest type of chemical. An element is composed of atoms. Atoms in turn are composed of subatomic particles. However, all substances are composed of atoms, and there are no substances composed only of subatomic particles - at least, not on Earth. It is believed that there exist neutron stars composed only of neutrons. In that situation, you could say that the neutron is the smallest type of substance.
a chemical reaction
electron and nuetron
No element could possibly fit this description. There are WAY too many electrons and no where near 201 particles in the nucleus.
We could say what the second smallest piece of matter if we knew what the smallest piece of matter was. Since the smallest pieces of matter known are quarks-down, strange and bottom have the lowest charge -3, they can be regarded as the first, second and third smallest particles.
Individual cells could be considered smallest whole functional parts. However if you wish to be pedantic you could include the constituents of those cells all the way down to subatomic particles.
Usually by adding heat and/or reducing pressure.
I believe so. But, i think water vapor could be smaller. not sure
Lithium is an element, so it can't really "break down". I suppose you could bombard it with neutrons or something.
meteors asteroids are not the smallest members in our sola systm thay could be or are cosmic particles coming from super novers and from our star ther are a hasard for astranots
A molecule is the smallest particle that is the same compound. Obviously molecules can be broken down further into atoms and these in turn could be broken down into fundamental particles.
This question is not clear. It could be a page break. You also could be referring to a row, as a horizontal element of a spreadsheet.
The smallest particle in gold should in fact be gold. Gold is an element, Au, and thus should only contain gold atoms. You could also argue that some subatomic particle is the smallest particle in gold.
Whew, I suppose it depends on what you define as breaking (assuming you are talking about chemical elements). If you have a single piece of elemental iron in solid form, you can break it into two pieces of elemental iron, although it is still an element. At one time, an atom was considered to be the smallest part of an element and could not be changed. However, that is only partly true. With radioactive decay, one element can be transformed into another. For example, Uranium 238 can undergo alpha decay and essentially be broken into Thorium 234 and a Helium ion. Particle Accelerators can be used to "smash atoms" that otherwise wouldn't spontaneously undergo radioactive decay. There are a number of subatomic particles including protons, electrons, and neutrons, but also additional smaller constituent particles of each of those.
It depends on what you mean by "break". Xenon is a monatomic gas so you aren't going to have any molecular bonds to break in the gas. Most Xenon is composed of stable isotopes so it doesn't much 'break" by radioactive decay. You could bombard it with nuclear particles and cause it to either absorb them and "break" by being transformed into a heavier element, or absorb to become radioactive and then "break" by decay, or fission to produce lighter elements (this is the most difficult since a lot of xenon isotopes are such good neutron absorbers)
well certain cells break down particles like worms break down leafs to make soil so therefor cells could do it as well.
The first element was hydrogen; it was made over 13 billion years ago when the universe cooled enough that stable atoms could be formed from the existing sub-atomic particles.
Changing the number of electrons simply makes the atom into an ion without changing the element. Changing the number of neutrons only changes the isotope.
The element that an atom is is determined by the number of protons. The number of electrons can be changed (creating an ion), and the number of neutrons can be changed (creating an isotope), and as long as the number of protons does not change, the element that the atom is does not change.
If we could experience the world at the smallest scales, we would see that what we think of as solid matter is much more space than it is mass.
You cannot classify the phase of matter of light. The particles of light are much different than the particles of ordinary matter. At a large level, if we take the measurements, the light is a transverse wave carried by disturbances in an electric field and a magnetic field, each in perpendicular oscillations to each other, and each perpendicular to the travel of the wave. At the smallest level possible, there is a smallest piece of which you could call light. These are called photons. They are also the force carrier particles of electric and magnetic forces. These particles have zero rest mass, but they have an effective mass when in motion at the speed of light