18Ar⁴⁰, 19K⁴⁰ and 20Ca are? – McqOptions

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1.	18Ar⁴⁰, 19K⁴⁰ and 20Ca are?
A.	isotopes
B.	isocratic
C.	Samneutronic
D.	even electronic
Answer» C. Samneutronic

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