Which of the following is the most electropositive element?
Identifying the most electropositive element from configurations
[Ar] 4s¹ = K (Potassium), the most electropositive among Na, Mg, K, Ca
Element X forms X⁻ (gains e⁻) and X⁺ (loses e⁻). Which statement is correct?
Comparing X, X⁺, and X⁻ properties
Cation (X⁺) loses an electron, resulting in fewer electrons and a smaller size
General trend of electronegativity of elements in a group of the periodic table
Electronegativity trend down a group
Going down a group, atomic size increases so nucleus attracts shared electrons less
Metals typically have _____ electronegativity values.
Electronegativity of metals
Metals tend to lose electrons rather than attract them, so they have low EN
A (group 2), B (group 17), and C (between group 2 and 17). Which among the three has the lowest electronegativity?
Comparing electronegativity across blocks
Group 2 (alkaline earth metals) have the lowest EN; group 17 halogens have high EN
The most electronegative element in the periodic table is
Most electronegative element
Fluorine (F) has the highest electronegativity value of 4.0 on the Pauling scale
Which of these elements is most electronegative?
Comparing electronegativity of Cl, Mg, Br, Na
Cl is a nonmetal in period 3 with high nuclear charge; highest EN among these four
In period 3, L has the highest and M has the lowest Pauling electronegativity. Statements: (1) L has covalent bonds; (2) L has higher atomic number than M; (3) Compound of L and M has ionic bonds. Which are correct?
Identifying elements L and M from electronegativity and their properties
L = Cl(highest EN, Z=17), M = Na(lowest EN, Z=11); Cl₂ is covalent, NaCl is ionic, Cl > Na in atomic number
The ability of an atom to attract a shared electron pair towards itself is called
Definition of electronegativity
Electronegativity applies specifically to bonded atoms sharing electrons
Which among the following possesses the highest electronegativity?
Comparing EN of Na, Cl, Al, Mg
Cl is a nonmetal (group 17) and has the highest electronegativity among Na, Cl, Al, Mg
