Tabela periodica
1776 palavras
8 páginas
Group 1 IA 1 2S1/21
Hydrogen
1.00794 1s 13.5984
Atomic Properties of the Elements
2 IIA
For the most accurate values of these and other constants, visit physics.nist.gov/constants 1 second = 9 192 631 770 periods of radiation corresponding to the transition between the two hyperfine levels of the ground state of 133Cs -1 speed of light in vacuum c 299 792 458 m s (exact) -34 Planck constant h 6.6261 × 10 J s ( /2 ) -19 elementary charge e 1.6022 × 10 C -31 electron mass me 9.1094 × 10 kg 2 0.5110 MeV me c -27 proton mass mp 1.6726 × 10 kg fine-structure constant 1/137.036 -1 Rydberg constant R 10 973 732 m 15 R c 3.289 842 × 10 Hz R hc 13.6057 eV -23 -1 Boltzmann constant k 1.3807 × 10 J K
P E R I O D I C
T A B L E
H
2
Frequently used fundamental physical constants
Physics Laboratory physics.nist.gov Standard Reference Data Group www.nist.gov/srd 2
18 VIIIA
He
Helium
1
1
S0
3 2
Lithium
6.941 2 1s 2s 5.3917
2
Li
S1/2
4
11 3
Na
Sodium
S1/2
12
9.012182 2 2 1s 2s 9.3227
Beryllium
Be
1
1
S0
Solids Liquids Gases Artificially Prepared
5
13 IIIA
2
Period
19 4
22.989770 [Ne] 3s 5.1391
Magnesium
24.3050 2 [Ne] 3s 7.6462
Mg Ca
40.078 2 [Ar] 4s 6.1132
1
S0
13
10.811 2 2 1s 2s 2p 8.2980
Boron
B
2
P° 1/2
6
14 IVA
Potassium
39.0983 [Ar] 4s 4.3407
K
2
2
S1/2
20
S0
26.981538 28.0855 30.973761 32.065 35.453 39.948 3 4 5 6 7 8 9 10 11 12 2 5 2 6 2 4 2 2 2 2 3 [Ne]3s 3p [Ne]3s 3p [Ne]3s 3p [Ne]3s 3p [Ne]3s 3p [Ne]3s 3p IIIB IVB VB VIB VIIB VIII IB IIB 5.9858 8.1517 10.4867 10.3600 12.9676 15.7596 ° ° ° 21 2D3/2 22 3F2 23 4F3/2 24 7S3 25 6S5/2 26 5D4 27 4F9/2 28 3F4 29 2S1/2 30 1S0 31 2P1/2 32 3P0 33 4S3/2 34 3P2 35 2P3/2 36 1S0
Aluminum
Al
P1/2 °
14
12.0107 2 2 2 1s 2s 2p 11.2603
Carbon
C
3
P0
7
15 VA
4
Silicon
Si
3
P0
15
14.0067 2 2 3 1s 2s 2p 14.5341
Nitrogen