5; K = 39; CA = 40; FE = 56; CU = 64; ZN = 65; AS = 75 ; BR = 80; R...

Question

35,5; K = 39; Ca = 40; Fe = 56; Cu = 64; Zn = 65; As = 75 ; Br = 80; Rb = 85,5; Ag = 108; Ba = 137.ĐỀ SỐ 21

Accepted Answer

1. C 6. A 11. A 16. D 21. B 26. C 31. B 36. B 41. D 46. A 2. C 7. B 12. C 17. B 22. C 27. A 32. C 37. B 42. C 47. A 3. D 8. A 13. C 18. C 23. D 28. C 33. B 38. C 43. B 48. C 4. D 9. B 14. B 19. D 24.....

5; K = 39; CA = 40; FE = 56; CU = 64; ZN = 65; AS = 75 ; BR = 80; R...

35,5; K = 39; Ca = 40; Fe = 56; Cu = 64; Zn = 65; As = 75 ; Br = 80; Rb = 85,5; Ag = 108;

Ba = 137.

ĐỀ SỐ 21

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