Match each species in Column I with the statements in Column II that are true for it (use 24 M g , 19 F , 39 K and 31 P ; specific charge = |charge|/mass number, and compare with N a + ( 23 N a ) : 1/

Question

Match each species in Column I with the statements in Column II that are true for it (use $^{24} M g,^{19} F,^{39} K$ and $^{31} P$ ; specific charge = |charge|/mass number, and compare with $N a^{+} (^{23} N a) : 1/23) (a$ Column I entry may match more than one Column II entry):

Column I (Species)	Column II (Statement)
(P) $M g^{2 +} (Z = 12)$	(1) isoelectronic with $N e$
(Q) $F^{-} (Z = 9)$	(2) isoelectronic with $A r$
(R) $K^{+} (Z = 19)$	(3) more protons than electrons
(S) $P^{3 -} (Z = 15)$	(4) fewer protons than electrons
	(5) specific charge greater than that of $N a^{+}$

Choose the option with the correct matching:

TestHub · Accepted Answer

(P) M g 2 + : 10 electrons, 12 protons; 2/24 = 0.083 > 0.043: 1, 3, 5. (Q) F − : 10 electrons, 9 protons; 1/19 = 0.053 > 0.043: 1, 4, 5. (R) K + : 18 electrons, 19 protons; 1/39 = 0.026 < 0.043: 2, 3. (S) P 3 − : 18 electrons, 15 protons; 3/31 = 0.097 > 0.043: 2, 4, 5. Correct matching: P to 1,3,5; Q to 1,4,5; R to 2,3; S to 2,4,5. Answer: (C).

Chemistry - Atomic Structure Question with Solution | TestHub

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