everyday science MCQ #48849

everyday science MCQ #48849

1. Question 1

   Q1. Across a period from left to right what happens to electronegativity in Pauling-style introductory trends?

   • A) It generally increases toward the right except rare formal exceptions students rarely need for MCQs
   • B) It always decreases because atoms gain more shells across a period
   • C) It is highest on the far left among alkali metals
   • D) It becomes zero for noble gases in every table used in exams

   Answer: It generally increases toward the right except rare formal exceptions students rarely need for MCQs

   Explanation: Electronegativity generally increases across a period from left to right because the nuclear charge rises while electrons are added to the same shell, pulling bonding pairs more strongly toward each atom. Noble gases are typically excluded from standard Pauling electronegativity scales, so the trend climbs toward the halogens on the right side of the period.