Re: Questions about Size of Atoms?

generally speaking
people are mumbling nonsense about that issue
because reality is more complicated than their private imagination
see for instance a quote from one of the sites i saw::

quote:

The size of an atom can be estimated by measuring the distance between
adjacent atoms in a covalent compound. The covalent radius of a
chlorine atom, for example, is half the distance between the nuclei of
the atoms in a Cl2 molecule.

The covalent radii of the main group elements are given in the figure
below. These data confirm the trends observed for metallic radii. Atoms
become larger as we go down a column of the periodic table, and they
becomes smaller as we go across a row of the table.

end of quote:
the size of atoms cannot be measured by the distance of atoms
because .........
there are many distances not just one
for instance in the hexagonal lattice
an Atom might Be close to another Atom but ......
not having a bond with it!!!
the bond is *in another direction to another Atom*

so it is not as simple as it shows from lust looking on crystals
you must know where is a bond and where there is no bond
(just neighbors !!)
generally speaking
most Atom bond length is THE SAME SIZE !!!
FOR ALL ATOMS
That tis one of my surprising findings
it is because the valance electron is extending out with the same
length!!!

it might be cases (even many of them ) that the *angle * of extending
out wards
is different * and that give s different distance between the mother
nuclei!!

but still th electron extension out wards is the same length!!

you can see some evidence to that in my table 2 of my site

yet there is another table in my book for compounds
that shows the same conclusion
the atom bond length is practically constant

and i called it :
the expansion of Avogadro's law
from the Gas state to the liquid and solid state!
(atoms in the gas state are of the same volume from the same reason-
the same electron bond length and here is where all that volume story
begones!!)
so once you realize it it makes life in a way easier
because less degrees of freedom!!
therefore a better possibilities for predictions
and that is one of the benefits of my above finding
you can predict for instance that the sized of
Al Ag and Au will be the same
in contrast to the silly shell model of 6 sub shells in endless
fiddling with them
we call it in our place:
'to invent and build a scarecrow and later so start fighting it '!!


ATB
Y.Porat
------------------------

.

Relevant Pages

  • Re: My New Website
    ... please note that the bottom point of that V is not an atom ... it is just a crossing of the electrons so the angle of that V ... one single bond (not in latice that is surounding each atm with 3d bonds ... > value for the arm length) results about the most basic lattice ...
    (sci.physics)
  • Re: My New Website
    ... > notices could you believe it comming from a crackpot?? ... the 3rd shell should be the same for every atom. ... >>than the usual single bond. ... > the difference is whther is is a single bond per atom ...
    (sci.physics)
  • Monatomic hydrogen as fuel - need a low bond energy to single hydrogen atoms.
    ... as single atoms rather than the usual H2 seen in hydrogen gas. ... specific impulse of this fuel could be as high as 1500 s. ... bond energy of about 104 kcal/mol. ... the only cases I've seen had an H atom ...
    (sci.energy.hydrogen)
  • Re: New Hydrogen Scam? Not really
    ... It's not AMPS that bond the hydrogen to the oxygen together, ... The oxygen atom in the water only has ONE more electron ... An almost brain dead explanation is to talk about electron sharing. ...
    (sci.energy.hydrogen)
  • Re: Questions about Size of Atoms?
    ... because the electron is one of the building stones of the Atom ... the resistance is changing because a change in electron 'arangement' ... The size of an atom can be estimated by measuring the distance between ... the bond is *in another direction to another Atom* ...
    (sci.physics)
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