2.0
The question is too general; iron for example has a Pauling electronegativity of 1,83.
Electronegativity is kind of a "made-up" thing as opposed to an actual quantity that can be experimentally measured. Fluorine is usually considered to have the highest electronegativity, though the precise value depends on exactly what definition and scale you're using and for "spectroscopic electronegativity" neon actually has the highest electronegativity of all.
Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. The Pauling scale is the most commonly used. Fluorine (the most electronegative element) is assigned a value of 4.0, and values range down to caesium and francium which are the least electronegative at 0.7.
Silicon
The electronegativity of carbon on the Pauling scale is 2,55.
You think probable to electronegativity.
the value approach the true value
The question is too general; iron for example has a Pauling electronegativity of 1,83.
The most probable value in a set of numbers is the mode.
fluorine is the most electronegative of the elementscaesium is the least electronegativeAdditional Explanation: http://en.wikipedia.org/wiki/Electronegativity#Periodic_trendsSource: The widely quoted Pauling electronegativity of 0.7 for francium is an extrapolated value of uncertain provenance. The Allen electronegativity of caesium is 0.66.
Lithium has a lower electronegativity than krypton. The electronegativity for lithium is 0.98; the electronegativity for krypton is 3.0. Note that most noble gases in group 18 have no electronegativity at all since the do not make compounds. However, since krypton and xenon do make compounds under some circumstances, they do have a measurable electronegativity.
Water is more polar because O has an electronegativity value of 3.5 whereas Cl has value of 3.0
No.
boron
Aluminum!!!!!=D ================== Nope - aluminum is almost always classified as a metal, not a metalloid. The most abundant metalloid is silicon - which, incidentally is about 3 times as abundant as aluminum.
For a single observation, the answer is the mean. But for more than one observation it will depend on the attribute that is being studied. For example, if looking for the oldest person in groups of people, the survey result will tend towards the maximum. More realistic examples might be a survey of fossils to find the oldest and so date the rocks in which they are found.
Electronegativity is kind of a "made-up" thing as opposed to an actual quantity that can be experimentally measured. Fluorine is usually considered to have the highest electronegativity, though the precise value depends on exactly what definition and scale you're using and for "spectroscopic electronegativity" neon actually has the highest electronegativity of all.