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BÀI TẬP TRẮC NGHIỆM HÓA ĐẠI CƯƠNG VÀ VÔ CƠ CẨM NANG DÙNG LUYỆN THI THPTQG CHẤT LƯỢNG CAO (COLOR BOOK)

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Cr: 1s 2 2s 2 2p 6 3s 2 3p 6 3d 5 4s 1 Cu: 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 1<br />

4<br />

4s 2 9 4s 2<br />

5<br />

(bán bão hòa) và d 10 (bão hòa)<br />

VD: Fe (Z = 26): 1s 2 2s 2 2p 6 3s 2 3p 6 3d 6 4s 2<br />

.<br />

6<br />

4s 2<br />

phi kim.<br />

1, 2, 3 electron .<br />

5, 6, 7 electron phi kim.<br />

4 electron<br />

8 electron .<br />

9<br />

(A) 1s 2 2s 2 2p 6 3s 2 3p 3 . (B) 1s 2 2s 2 2p 6 3s 2 3p 1 .<br />

(C) 1s 2 2s 2 2p 6 3s 1 3p 2 . (D) 1s 2 2s 2 2p 6 3s 2 3p 2 .<br />

A<br />

(A) 1s 2 2s 2 2p 6 3s 2 3p 5 . (B) 1s 2 2s 2 2p 6 3s 2 3p 3 .<br />

(C) 1s 2 2s 2 2p 6 3s 2 3p 4 . (D) 1s 2 2s 2 2p 6 3s 2 3p 2 .<br />

B<br />

(A) [Ar]3d 9 4s 2 . (B) [Ar]3d 8 4s 2 .<br />

(C) [Ar]3d 10 4s 2 . (D) [Ar]3d 10 4s 1 .<br />

C<br />

(A) [Ar]3d 4 4s 2 . (B) [Ar]3d 5 4s 2 .<br />

(C) [Ar]3d 5 4s 1 . (D) [Ar]3d 7 .<br />

D<br />

(A) [Ar]3d 5 4s 2 và [Ar]3d 7 4s 2 . (B) [Ar]3d 4 4s 2 và [Ar]3d 7 4s 2 .<br />

(C) [Ar]3d 5 4s 1 và [Ar]3d 9 . (D) [Ar]3d 5 4s 1 và [Ar]3d 7 4s 2 .<br />

4<br />

13

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