www.tuhoc.edu.vn TOPPER Chú ý nhân chu kì 21 Ô nguyên Chu kì Nhóm VD1: Na (Z = 11): [Ne] 3s1; Ca (Z = 20): [Ar]4s2 htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn 31 VD2: Fe có Z = 26 VD3: Fe (Z = 26): 1s22s22p63s23p63d64s2 Na (Z = 11): 1s22s22p63s1 anpb VD4: Na (Z = 11): [Ne]3s1 Al (Z = 13): [Ne]3s23p1 ansb a+b 3–7 – 10 11, 12 VD5: Cr (Z = 24): [Ar]3d54s1 Nhóm IIIB – VIIB VIIIB IB IIB Fe (Z = 26): [Ar]3d64s2 Cu (Z = 29): [Ar]3d104s1 htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn không (A (B (C (D (A (B (C (D (A) (B) (C) (D) 16 (A (B (C (D (A (B không (C (D htttp://tuhoc.edu.vn/blog (A) (B) (C) (D) (A) (B) (C) (D) (A) IIIA (B) VIB (C) VA (D) VIA (A) IIA 34s2 (B) VA (C) VB (D) IIIB www.tuhoc.edu.vn VD6: Mg (Z = 12), Cl (Z = 17), Fe (Z = 26) TOPPER Chú ý – Mg (Z = 12): 1s22s22p63s2 s, p – Cl (Z = 17): 1s22s22p63s23p5 d, f – Fe (Z = 26): 1s22s22p63s23p63d64s2 (A) chu kì 3, nhóm VA (C) chu kì 2, nhóm VIIA (B) chu kì 3, nhóm VIIA (D) chu kì 2, nhóm VA 2Z N 52 N Z Z 17 N 18 – X (Z = 17): 1s22s22p63s23p5 VD8: Cation M+ (A) chu kì 3, nhóm IIIA (C) chu kì 3, nhóm IIA htttp://tuhoc.edu.vn/blog (B) chu kì 2, nhóm VIIA (D) chu kì 3, nhóm IA +: 1s22s22p6 M: 1s22s22p63s1 www.tuhoc.edu.vn A (A (C (B (D B 22s22p2 (A (C (B (D C (A (C (B (D D 23p5 (A (C (B (D E 14s2 (A (C (B (D F 74s2 (A (C (B (D G (A) IIA (B) IIB (C) VIB (D) VIIIB H htttp://tuhoc.edu.vn/blog (A (C (B (D www.tuhoc.edu.vn I (A (C J (B (D Anion X- cation Y2+ 3s23p6 A) B) C) D) K Ion M2+ (A) chu kì 4, nhóm VIIIB (C) chu kì 4, nhóm VIIIA L (A) chu kì 3, nhóm IIIA (C) chu kì 3, nhóm VIA (B) chu kì 4, nhóm VIB (D) chu kì IV, nhóm IIA 3+ (B) chu kì 4, nhóm IA (D) chu kì 3, nhóm IIA htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn VD9: 1s22s22p63s2 VD10: N 1,52Z 3Z 28 3,52Z 7,95 Z 9,33 22s22p4 22s22p5 1s22s22p5 Z=9 M (A) [Ne]3s2 (B) [Ar]3s2 (C) [Ar]4s2 (D) [Ar]4p2 N htttp://tuhoc.edu.vn/blog (A) [Ar]3d6 (B) [Ar]3d44s2 (C) [Ar]3d54s1 (D) [Ar]3d64s2 O (A) (B) (C) (D) www.tuhoc.edu.vn P (A) [Ne]3s1 (B) [Ne]3s23p2 (C) [Ne]3s2 (D) [Ne]3s23p1 htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn Câu D Câu E C C F D B G D B H B C I D B J C B K A C L A C M C A D N C B C O B C B P D D C htttp://tuhoc.edu.vn/blog