Isotopes

Tested in 8 real MPSC questions across 4 years (2014–2022). See it in context on the interactive Concept Graph →

Years it was asked

2022 2019 2017 2014

What you need to know first

Definition of isotopesDefinition of atomic numberProtons and neutronsAtomic structureHalf-life of isotopes

What mastering this unlocks

Radiocarbon datingCarbon-14 half-lifeRadioactivity Alpha decay

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⁺ पर्याय उत्तरे : 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⁺ Answer Options :

1)I - a; II - d; III - b, d; IV - a, c

2)I - a, c; II - d; III - b, d; IV - a

3)I - a, b, c, d; II - d; III - b, d; IV - a, c&check; Correct

4)I - a, b, d; II - d; III - b; IV - a, b, c

Detailed electron, proton, and neutron calculations for Ne, Na+, F-, and Mg2+ match multiple criteria across the groups due to isoelectronic and isotopic relationships.

ऑक्सीजन निसर्गात किती आइसोटोप्स मध्ये आढळतो? / Oxygen occurs in nature in ________ isotopic forms.

1)2

2)3&check; Correct

3)4

4)1

Oxygen occurs naturally in three stable isotopic forms: Oxygen-16, Oxygen-17, and Oxygen-18.

ज्या केंद्रभागांचे अणुक्रमांक आणि अणु वस्तुमान विविध असतात, पण न्यूट्रॉनची संख्या समान असेल, तर त्यांना ________ म्हणतात. If nuclides have different atomic numbers and different atomic masses but the same number of neutrons, then they are known as

1)Isotopes

2)Isobars

3)Isotones&check; Correct

4)None of the above

Nuclides with different atomic numbers and mass numbers but the exact same number of neutrons are known as Isotones.

ट्रीटियमचा अणुक्रमांक ______ आहे. An atomic number of Tritium is ______

1)03

2)04

3)02

4)01&check; Correct

Tritium is an isotope of hydrogen. All isotopes of an element share the same atomic number, which is 1 for hydrogen (Protium, Deuterium, and Tritium all have atomic number 1).

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