Page 341 - Quimica - Undécima Edición

7.9 El principio de construcción 311

Tabla 7.3 Confi guración electrónica de los elementos en su estado fundamental*

Número Confi guración Número Confi guración Número Confi guración
atómico Símbolo electrónica atómico Símbolo electrónica atómico Símbolo electrónica
14
2
2
1 H 1s 1 39 Y [Kr]5s 4d 1 77 Ir [Xe]6s 4f 5d 7
2
1
14
2 He 1s 2 40 Zr [Kr]5s 4d 2 78 Pt [Xe]6s 4f 5d 9
1
14
1
3 Li [He]2s 1 41 Nb [Kr]5s 4d 4 79 Au [Xe]6s 4f 5d 10
2
1
14
4 Be [He]2s 2 42 Mo [Kr]5s 4d 5 80 Hg [Xe]6s 4f 5d 10
14
10
2
2
2
5 B [He]2s 2p 1 43 Tc [Kr]5s 4d 5 81 Tl [Xe]6s 4f 5d 6p 1
14
2
1
2
10
6 C [He]2s 2p 2 44 Ru [Kr]5s 4d 7 82 Pb [Xe]6s 4f 5d 6p 2
14
2
1
10
2
7 N [He]2s 2p 3 45 Rh [Kr]5s 4d 8 83 Bi [Xe]6s 4f 5d 6p 3
2
2
14
10
8 O [He]2s 2p 4 46 Pd [Kr]4d 10 84 Po [Xe]6s 4f 5d 6p 4
2
2
1
14
10
9 F [He]2s 2p 5 47 Ag [Kr]5s 4d 10 85 At [Xe]6s 4f 5d 6p 5
14
10
2
2
2
10 Ne [He]2s 2p 6 48 Cd [Kr]5s 4d 10 86 Rn [Xe]6s 4f 5d 6p 6
10
2
11 Na [Ne]3s 1 49 In [Kr]5s 4d 5p 1 87 Fr [Rn]7s 1
10
2
12 Mg [Ne]3s 2 50 Sn [Kr]5s 4d 5p 2 88 Ra [Rn]7s 2
2
2
2
10
13 Al [Ne]3s 3p 1 51 Sb [Kr]5s 4d 5p 3 89 Ac [Rn]7s 6d 1
2
2
2
10
14 Si [Ne]3s 3p 2 52 Te [Kr]5s 4d 5p 4 90 Th [Rn]7s 6d 2
10
2
2
2
2
15 P [Ne]3s 3p 3 53 I [Kr]5s 4d 5p 5 91 Pa [Rn]7s 5f 6d 1
2
3
10
2
2
16 S [Ne]3s 3p 4 54 Xe [Kr]5s 4d 5p 6 92 U [Rn]7s 5f 6d 1
4
2
2
17 Cl [Ne]3s 3p 5 55 Cs [Xe]6s 1 93 Np [Rn]7s 5f 6d 1
2
2
18 Ar [Ne]3s 3p 6 56 Ba [Xe]6s 2 94 Pu [Rn]7s 5f 6
2
2
19 K [Ar]4s 1 57 La [Xe]6s 5d 1 95 Am [Rn]7s 5f 7
2
2
7
1
20 Ca [Ar]4s 2 58 Ce [Xe]6s 4f 5d 1 96 Cm [Rn]7s 5f 6d 1
2
2
2
21 Sc [Ar]4s 3d 1 59 Pr [Xe]6s 4f 3 97 Bk [Rn]7s 5f 9
2
2
2
22 Ti [Ar]4s 3d 2 60 Nd [Xe]6s 4f 4 98 Cf [Rn]7s 5f 10
2
2
2
23 V [Ar]4s 3d 3 61 Pm [Xe]6s 4f 5 99 Es [Rn]7s 5f 11
1
2
2
24 Cr [Ar]4s 3d 5 62 Sm [Xe]6s 4f 6 100 Fm [Rn]7s 5f 12
2
2
2
25 Mn [Ar]4s 3d 5 63 Eu [Xe]6s 4f 7 101 Md [Rn]7s 5f 13
2
2
7
2
26 Fe [Ar]4s 3d 6 64 Gd [Xe]6s 4f 5d 1 102 No [Rn]7s 5f 14
2
2
14
2
27 Co [Ar]4s 3d 7 65 Tb [Xe]6s 4f 9 103 Lr [Rn]7s 5f 6d 1
2
2
2
14
28 Ni [Ar]4s 3d 8 66 Dy [Xe]6s 4f 10 104 Rf [Rn]7s 5f 6d 2
2
2
1
14
29 Cu [Ar]4s 3d 10 67 Ho [Xe]6s 4f 11 105 Db [Rn]7s 5f 6d 3
2
2
14
2
30 Zn [Ar]4s 3d 10 68 Er [Xe]6s 4f 12 106 Sg [Rn]7s 5f 6d 4
14
10
2
2
2
31 Ga [Ar]4s 3d 4p 1 69 Tm [Xe]6s 4f 13 107 Bh [Rn]7s 5f 6d 5
10
2
14
2
2
32 Ge [Ar]4s 3d 4p 2 70 Yb [Xe]6s 4f 14 108 Hs [Rn]7s 5f 6d 6
10
14
2
2
14
2
33 As [Ar]4s 3d 4p 3 71 Lu [Xe]6s 4f 5d 1 109 Mt [Rn]7s 5f 6d 7
2
2
14
10
14
2
34 Se [Ar]4s 3d 4p 4 72 Hf [Xe]6s 4f 5d 2 110 Ds [Rn]7s 5f 6d 8
14
2
2
2
14
10
35 Br [Ar]4s 3d 4p 5 73 Ta [Xe]6s 4f 5d 3 111 Rg [Rn]7s 5f 6d 9
2
14
2
10
2
14
36 Kr [Ar]4s 3d 4p 6 74 W [Xe]6s 4f 5d 4 112 Cn [Rn]7s 5f 6d 10
2
14
37 Rb [Kr]5s 1 75 Re [Xe]6s 4f 5d 5
14
2
38 Sr [Kr]5s 2 76 Os [Xe]6s 4f 5d 6
2
6
2
2
* El símbolo [He] se denomina kernel de helio y representa 1s . [Ne] se denomina kernel de neón y representa 1s 2s 2p . [Ar] se denomina kernel de argón y
2
6
6
10
10
2
6
2
representa [Ne]3s 3p . [Kr] se denomina kernel de kriptón y representa [Ar]4s 3d 4p . [Xe] se denomina kernel de xenón y representa [Kr]5s 4d 5p . [Rn] se
10
14
2
denomina kernel de radón y representa [Xe]6s 4f 5d 6p . 6