E-L-E-M-E-N-T-Ss.....?

Question

How would you distiguish metallic elements from non metallic ones by a chemical reaction? And, what kind of chemical reaction can be used to distigiush between the two? Can you explain the process of doing it? Please share with me your web resources. Thank you very much.

Answer 1

Sorry to dissapoint you but there is no full proof chemical reaction with no or few exceptions.
Instead we use physical properties like electricity/heat conduction, ductility,sometimes lustre, malleability,etc. to distingiush between metals and metalloids.

Answer 2

Summary:

All elements are classified in three broad groups according to their chemical and physical properties. These are the metals, nonmetals, and metalloids.

Most of the elements are metals. So, a few "characteristic" reactions can be used to test for metal character and you can assume non-reaction or less-than-enthusiastic reaction indicates less metallic (or more nonmetallic) character.

Metals have low ionization energies and low electron affinities, meaning that they tend to form positive cations as opposed to nonmetals. All metallic elements combine with nonmetals such as oxygen and chlorine to form salts. So exposing a sample to oxygen or chlorine will lead to the formation of an ionic compound (rather than an covalently-bonded one).

Easier tests in the lab:

a) reaction with HCl to form a metal salt by a single displacement reaction.

b) reaction with something like CuCl2 or AgNO3 to form the pure Cu or Ag metal, again by single displacement.

Both of these tests indicate that your test sample can substitute for a known metal (we'll be abit handwavy in treating hydrogen as a metal, chemistry-wise). Therefore, it must be a metal.

From the perspective of the real world (which even "easy" labs reflect), it is difficult to draw the hard, fast, and black&white lines that grade-school textbooks often blithely imply. Metal/nonmetal/metalloid character is full of shading and determined experimentally (measuring both chemical and physical properties) using appartus/equipment that isn't familiar to the beginning student (although the results can be neatly tabulated and graphed for them to chew on).

I suspect you just need to ask the internet search engines for the correct terms for your Internet sources (e.g. metal, nonmetal, reactions). You should get several dozen.

Answer 3

Metals react with acid t produce H2 gas.

Metals produce a + ion as they give away electons.
All are solids except Hg
Metals are conductive of heat and electricity.
Metals are shiny, malleable, ductile,
Metal xides form bases
Nonmetals are colorful, many gases and 1 liquid.
Form - ion as they take electrons
Nonmetal oxides form acids

Answer 4

metallic elements can not be distiguish with a chemical recation. sorry.

Answer 5

metllic elements react with an acid and the same acid will not react with non metals