Connection between Bohr model and De Broglie wavelength
editI'll just put this here in case I find motivation to work on this. At a minimum, the connection should be explained more clearly in both Bohr model and Louis de Broglie, with mention that this connection was proposed by De Broglie himself along with what is now known as the De Broglie wavelength, and was a major factor in the latter's acceptance.
nλ = 2πr and λ = h/p ⇒ nh = 2πrp ⇔ L = rp = nh/2π
Periodic table (electronegativity by Pauling scale) : conservative version
editGroup → | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
↓ Period | ||||||||||||||||||
1 | 1 H 2.20 |
2 He | ||||||||||||||||
2 | 3 Li 0.98 |
4 Be 1.57 |
5 B 2.04 |
6 C 2.55 |
7 N 3.04 |
8 O 3.44 |
9 F 3.98 |
10 Ne | ||||||||||
3 | 11 Na 0.93 |
12 Mg 1.31 |
13 Al 1.61 |
14 Si 1.90 |
15 P 2.19 |
16 S 2.58 |
17 Cl 3.16 |
18 Ar | ||||||||||
4 | 19 K 0.82 |
20 Ca 1.00 |
21 Sc 1.36 |
22 Ti 1.54 |
23 V 1.63 |
24 Cr 1.66 |
25 Mn 1.55 |
26 Fe 1.83 |
27 Co 1.88 |
28 Ni 1.91 |
29 Cu 1.90 |
30 Zn 1.65 |
31 Ga 1.81 |
32 Ge 2.01 |
33 As 2.18 |
34 Se 2.55 |
35 Br 2.96 |
36 Kr 3.00 |
5 | 37 Rb 0.82 |
38 Sr 0.95 |
39 Y 1.22 |
40 Zr 1.33 |
41 Nb 1.6 |
42 Mo 2.16 |
43 Tc 1.9 |
44 Ru 2.2 |
45 Rh 2.28 |
46 Pd 2.20 |
47 Ag 1.93 |
48 Cd 1.69 |
49 In 1.78 |
50 Sn 1.96 |
51 Sb 2.05 |
52 Te 2.1 |
53 I 2.66 |
54 Xe 2.60 |
6 | 55 Cs 0.79 |
56 Ba 0.89 |
72 Hf 1.3 |
73 Ta 1.5 |
74 W 2.36 |
75 Re 1.9 |
76 Os 2.2 |
77 Ir 2.20 |
78 Pt 2.28 |
79 Au 2.54 |
80 Hg 2.00 |
81 Tl 1.62 |
82 Pb 1.87 |
83 Bi 2.02 |
84 Po 2.0 |
85 At 2.2 |
86 Rn | |
57 La 1.1 |
58 Ce 1.12 |
59 Pr 1.13 |
60 Nd 1.14 |
61 Pm |
62 Sm 1.17 |
63 Eu |
64 Gd 1.20 |
65 Tb |
66 Dy 1.22 |
67 Ho 1.23 |
68 Er 1.24 |
69 Tm 1.25 |
70 Yb |
71 Lu 1.27 |
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See also: Electronegativities of the elements (data page)
Periodic table (electronegativity by Pauling scale) + atomic numbers
editGroup → | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
↓ Period | ||||||||||||||||||
1 | 1 H 2.20 |
2 He | ||||||||||||||||
2 | 3 Li 0.98 |
4 Be 1.57 |
5 B 2.04 |
6 C 2.55 |
7 N 3.04 |
8 O 3.44 |
9 F 3.98 |
10 Ne | ||||||||||
3 | 11 Na 0.93 |
12 Mg 1.31 |
13 Al 1.61 |
14 Si 1.90 |
15 P 2.19 |
16 S 2.58 |
17 Cl 3.16 |
18 Ar | ||||||||||
4 | 19 K 0.82 |
20 Ca 1.00 |
21 Sc 1.36 |
22 Ti 1.54 |
23 V 1.63 |
24 Cr 1.66 |
25 Mn 1.55 |
26 Fe 1.83 |
27 Co 1.88 |
28 Ni 1.91 |
29 Cu 1.90 |
30 Zn 1.65 |
31 Ga 1.81 |
32 Ge 2.01 |
33 As 2.18 |
34 Se 2.55 |
35 Br 2.96 |
36 Kr 3.00 |
5 | 37 Rb 0.82 |
38 Sr 0.95 |
39 Y 1.22 |
40 Zr 1.33 |
41 Nb 1.6 |
42 Mo 2.16 |
43 Tc 1.9 |
44 Ru 2.2 |
45 Rh 2.28 |
46 Pd 2.20 |
47 Ag 1.93 |
48 Cd 1.69 |
49 In 1.78 |
50 Sn 1.96 |
51 Sb 2.05 |
52 Te 2.1 |
53 I 2.66 |
54 Xe 2.60 |
6 | 55 Cs 0.79 |
56 Ba 0.89 |
72 Hf 1.3 |
73 Ta 1.5 |
74 W 2.36 |
75 Re 1.9 |
76 Os 2.2 |
77 Ir 2.20 |
78 Pt 2.28 |
79 Au 2.54 |
80 Hg 2.00 |
81 Tl 1.62 |
82 Pb 1.87 |
83 Bi 2.02 |
84 Po 2.0 |
85 At 2.2 |
86 Rn 2.2 | |
7 | 87 Fr ≥0.7 |
88 Ra 0.9 |
104 Rf |
105 Db |
106 Sg |
107 Bh |
108 Hs |
109 Mt |
110 Ds |
111 Rg |
112 Cn |
113 Uut |
114 Fl |
115 Uup |
116 Lv |
117 Uus |
118 Uuo | |
57 La 1.1 |
58 Ce 1.12 |
59 Pr 1.13 |
60 Nd 1.14 |
61 Pm 1.13 |
62 Sm 1.17 |
63 Eu 1.2 |
64 Gd 1.20 |
65 Tb 1.1 |
66 Dy 1.22 |
67 Ho 1.23 |
68 Er 1.24 |
69 Tm 1.25 |
70 Yb 1.1 |
71 Lu 1.27 | ||||
89 Ac 1.1 |
90 Th 1.3 |
91 Pa 1.5 |
92 U 1.38 |
93 Np 1.36 |
94 Pu 1.28 |
95 Am 1.13 |
96 Cm 1.28 |
97 Bk 1.3 |
98 Cf 1.3 |
99 Es 1.3 |
100 Fm 1.3 |
101 Md 1.3 |
102 No 1.3 |
103 Lr 1.3 |
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