Isoelectronic species
Isoelectronic species is a Science & Technology concept from the MPSC syllabus, tested in 2 past MPSC questions (2019). Below are those real questions with their correct answers and explanations, plus the concepts worth being comfortable with first.
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Real questions that test this
'अ' गटातील घटकांना 'ब' गटात एकापेक्षा जास्त बरोबर पर्याय उपलब्ध असू शकतात. 'अ' गट 'ब' गट I. 10 इलेक्ट्रॉन्स अ. ²⁰₁₀Ne II. 12 प्रोटॉन्स ब. ²³₁₁Na⁺ III. 12 न्युट्रॉन्स क. ¹⁹₉F⁻ IV. 10 न्युट्रॉन्स ड. ²⁴₁₂Mg²⁺ You may have more than one correct match in Group 'B' for each item in Group 'A'. Group A Group B I. 10 electrons a. ²⁰₁₀Ne II. 12 protons b. ²³₁₁Na⁺ III. 12 neutrons c. ¹⁹₉F⁻ IV. 10 neutrons d. ²⁴₁₂Mg²⁺
Detailed electron, proton, and neutron calculations for Ne, Na+, F-, and Mg2+ match multiple criteria across the groups due to isoelectronic and isotopic relationships.
शास्त्रीय तर्कानुसार. खालीलपैकी कोणती विधाने अचूक असतील.
(a)अणुपेक्षा त्याच्या कटायनचे आकारमान कमी असते.
(b)अणुपेक्षा त्याच्या अनामनचे आकारमान कमी असते.
(c)अणुपेक्षा त्याच्या कटायनचे आकारमान जास्त असते.
(d)अणुपेक्षा त्याच्या अनायनचे आकारमान जास्त असते.
A cation is formed by losing electrons, making its size smaller than the neutral atom (statement a). An anion is formed by gaining electrons, making its size larger than the neutral atom (statement d).