v. The electron affinity for potassium is-48.9 kJ/mol. Which equation below repr

Question

v. The electron affinity for potassium is-48.9 kJ/mol. Which equation below represents the electrorn affinity process for potassium? A)K(g) + e-K"(g) C) K+ (g) + e- K (g) B)K(g) K+ (g) + e- D) K (s) + e- K. (g) vi. What type of bond is characterized by the unequal sharing of electrons? A) Polar Covalent Bond B) Non-Polar Covalent Bond C) lonic Bond D) Bond, James Bond vii. Which of the salts below would you expect to have the greatest lattice energy? A) BeF2 B) KI C) LiBr D) BeO vii. Which covalent bond below would be the most polar? A) C-F B) CN C) N-o D) N-F

Explanation / Answer

v) A) K (g) + e- --> K- (g)

electron affinity is energy released or added when an electron is added to a neutral atom

vi) A) Polar covalent bond

vii) D) BeO

vii) A ) C-F

C and F has the highest electronegativity difference

so it must be the most polar bond

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