Electronegativity
Electronegativity is an concept from the MPSC syllabus, tested in 2 past MPSC questions (2020, 2021). Below are those real questions with their correct answers and explanations.
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आधुनिक आवर्तसारणीतील अणूची त्रिज्या हा आवर्ती गुणधर्म विचारात घेता खालीलपैकी कोणती विधाने बरोबर आहेत ? / In modern periodic table, which of the following statements about atomic radius are true ?
(a)वरून खाली जाताना वाढते. / Increases from top to bottom
(b)वरून खाली जाताना कमी होते. / Decreases from top to bottom
(c)डावीकडून उजवीकडे जाताना वाढते. / Increases from left to right
(d)डावीकडून उजवीकडे जाताना कमी होते. / Decreases from left to right
Atomic radius increases down a group due to the addition of new electronic shells, and decreases across a period from left to right due to increased effective nuclear charge.
कोणाची आयनन ऊर्जा (IE) सर्वात जास्त आहे ? / Which has maximum Ionization Energy ?
Ionization energy increases across a period and decreases down a group. Among common elements tested, noble gases or elements towards the top-right of the periodic table possess the maximum ionization energy.