No element is monoatomic in solid or liquid form- this true?
961628
Two separate questions.  Liquid mercury, for example, contains mercury atoms that are not bonded to each other and are therefore monatomic.  Most metals are also monatomic in solid and liquid state, because heating them will cause them to separate (therefore they have a physical and not a chemical bond).  However, "liquid" and "solid" refer to the interactions between atoms, so you cannot talk about the "form" of a single atom because without other atoms to interact with, there is no meaning to the "liquid" or "solid" terms.
420623
You can't. Alchemy is a myth. Without nuclear reactions, you can't turn lead into gold, or any element into any other element.
266559
Ignore First L.\n\nI don't think you can tell directly from the periodic table what is solid/liquid/gas. Typically the noble gases are, well, gases.
648583
Atom  \n\nThe smallest unit matter can be divided into whilst still retaining its chemical identity. Atoms are not single particles but complex arrangements of three types of particles. The subatomic particles, protons, neutrons and electrons, combine to form atoms. The protons and neutrons provide the bulk of an atom's mass and are concentrated into a tiny central region known as the atomic nucleus. The nucleus is held together by the strong nuclear force which acts between the constituent particles (termed nucleons ). The protons are positively charged and so mutually repel each other, but it is not until there are many of them that they overcome the nuclear force. Thus there is only one stable element beyond lead (Z=82). Whilst the radius of an atom is in the region of 10-10 metres, the atomic nucleus is about ten thousand times smaller at 10-14 metres. The volume surrounding the nucleus is where the electrons exist. They are much lighter than the protons and neutrons and carry a negative electrical charge. Being opposite in charge to the nucleus, the electrons are held in orbits around it by the force of electromagnetism. The electrons exist in electron orbitals around the nucleus. These orbitals are grouped into shells. Within each shell are energy levels which allow the electrons to exist in unique quantum states, depending upon their angular momentum (hence energy), in accordance with Pauli's exclusion principle . In a neutral atom the number of electrons equals the number of protons. When ionisation occurs, one or more electrons are provided with enough energy to escape the atom altogether. What remains is known as an ion because it is now positively charged and will behave in a different way chemically from neutral atom. The number of protons in the nucleus of an atom (the atomic number , Z) defines which chemical element it is. There are just over 110 known chemical elements and these can be arranged in a classification sequence known as the periodic table. The number of neutrons in any given atomic nucleus can also vary. The total number of protons + neutrons is termed the atomic mass number (A). Most atoms have a prefered number of neutrons at which their nuclei are stable. Atoms with more or less neutrons than the stable configuration are known as isotopes and will often undergo radioactive decay. The simplest of all atoms is hydrogen and is a special case which has a nucleus of one solitary proton and a single electron in orbit around it. It is the only nuclide (species of nucleus) with no neutron. A stable isotope of hydrogen is called deuterium which has one neutron in its nucleus; tritium is an unstable (radioactive) isotope of hydrogen and has two neutrons. See also atomic absorption , atomic emission , atomic number , molecule .
354354
No element is synthetic
1032403
No because an atom is only a single element and thus such a "universe" would have no chemical composition except for the single atom it would have been made from
195709
The only element that has only one electron is hydrogen.  Is high pressure, such as the surface of Jupiter, or extremely low temperatures, hydrogen forms a solid which has the properties of an alkali metal-it is an electron donor.
531279
monatomic elements don't have molecular structures, molecules do.  your question is therefore confusing.\n\nelements have different isotopes (more or less neutrons)\n\nmolecules have different isomers (same number of elements, just connected differently)
168394
An element consists of protons, neutrons and electrons. The protons and neutrons are to be found in the nucleus which is a dense ball of energy/mass. The protons are 'positive' and neutrons are 'neutral'. The electrons are to be found within the vicinity of the nucleus in set energy states defined by the quantum properties of the particular element. The electrons can be considered to particles orbiting the nucleus if you haven't done quantum physics or they can be considered to have a probability distribution of appearing at any particular point within one of the clouds around the nucleus if you have some knowledge of quantum mechanics! Elements have the same number of protons and electrons so the charge is balanced. The number of neutrons tend to equal the number of protons in light elements, although this does differ frequently! In heavier atoms there are far more neutrons (this is to maintain the stability of the nucleus - which is made unstable by too many postive charges occupying a very close space).
865526
Solid. The only liquid ones are bromine and mercury I think.\nPotassium is a soft silvery-white metallic alkali metal that occurs naturally bound to other elements in seawater and many minerals
838528
No elements are there.\n(If it would have been there, one would have to discover another quantum number in order to distinguish between them).\n& like the previous answerer said it would have been violated the Pauli's exclusion principle.\nThe quantum numbers are there to distinguish between different electrons.
949928
I think this is an interesting question.  Surprisingly, I think the answer is yes for some properties.  I don't have data in front of me (my books are at the office), but I'll bet that if you compare densities of homologous compounds in a group, you'd find that the density increases along with the density of the main constituent atoms.  I'll also bet that there are spectroscopic properties that are retained -- those relating to the inner shells.  In addition, there are tests used by mineralogists to detect the presence of common constituent metals in different minerals; a common example is the sodium "D" emission that causes a yellow flame in a fire when sodium is present regardless of the counterion.  In inorganic chemistry I seem to remember endless graphs of periodic properties that we used as a mnemonic device, but that was too many years ago to remember them.\n\nIf I wanted to look into it on the internet, I'd do a search on "periodic properties of the elements."  Also, geochemists are wonderful for collecting data and putting together tables of such things, and undergraduate inorganic textbooks may be helpful for finding some as well.
955918
Liquid Nitrogen: N2\n\nThe diatomic elements are hydrogen, nitrogen, oxygen, and the halogens: fluorine, chlorine, bromine, iodine, and astatine. Astatine is so rare in nature (its most stable isotope has a half-life of only 8.1 hours) that it is usually not considered. Many metals are also diatomic when in their gaseous states.\n\n\n\nIn inorganic chemistry, the bisulfite (IUPAC-recommended nomenclature: hydrogen sulfite) ion is the HSO3− ion. It is the conjugate base of sulfurous acid, H2SO3. Salts containing the \nHSO3− ion are bisulfite [salt]s It is a weakly acidic substance which has a pKa of 6.97.\n\nSilver Bisulfate: AgHSO3\n\n\nPotassium Phospate (tribasic): K3 P O4 \n\nhttp://www.hbci.com/~wenonah/hydro/2kpo.htm
477021
Not an element; yes its still the king of hardness\nThere are experiments ongoing with low-speed nuclear bombardment of iridium with smaller nuclei which are producing very thin layers of great density that approaches the hardness of diamond.
534339
There is no element whose density is 14.6
973323
well, since there is only one element that can form a tri-atom (Iodine) I would say monoatomic elements would be the opposite, but this is a very ill-defined question.
361037
It is a mixture. A solution has ions in it and is possible only in liquid phase. A compound is a solid material that is formed when the materials react with each other. Even after they react they form mixed compounds. It is not suspension.