Do u mean when electrons are transferred to the valence shell what happens to the electronegativity? The electronegativity is greater in the valence she'll because they have greater reason to pull electrons to pull towards them
Its on Google..."The group number of a representative element in the periodic table is related to the number of valence electrons it has. ... Elements of the halogen family lose one electron to become halide ions."
Answer is (4) - Se.
Among the given choices Se has the highest electronegativity value as 2.4 compared to others. Hence, Se shows <span>greatest attraction for electrons in a chemical bond.
</span>Electronegativity is
a value that tells us how an atom can attract electrons towards itself. <span>If
the electronegativity is high, then the attraction to the electrons is also high.
</span>
so one liter is about 2. something gallons so at 12.8 km/l you would get about 30 mpg which is insane but yeah
