Nama unsur
|
Lambang
|
Nomor atom
|
Massa atom
|
Isotop
paling stabil
|
Waktu paruh
isotop paling stabil
|
Golongan
|
Periode
|
Aktinium
|
Ac
|
89
|
[227]
1
|
227
Ac
|
21,772 thn
|
|
7
|
Aluminium
|
Al
|
13
|
26,9815386(8)
|
27
Al
|
Stabil
|
13
|
3
|
Amerisium
|
Am
|
95
|
[243]
1
|
243
Am
|
7370 thn
|
|
7
|
Antimon
(
Stibium
)
|
Sb
|
51
|
121,760(1)
2
|
121
,
123
Sb
|
Stabil
|
15
|
5
|
Argon
|
Ar
|
18
|
39,948(1)
2
4
|
36
,
38
,
40
Ar
|
Stabil
|
18
|
3
|
Arsen
|
As
|
33
|
74,92160(2)
|
75
As
|
Stabil
|
15
|
4
|
Astatin
|
At
|
85
|
[210]
1
|
210
At
|
8,1 jam
|
17
|
6
|
Barium
|
Ba
|
56
|
137,327(7)
|
132
,
134
,
135
,
136
,
137
,
138
Ba
|
Stabil
|
2
|
6
|
Belerang
(
Sulfur
)
|
S
|
16
|
32,065(5)
2
4
|
32
,
33
,
34
,
36
S
|
Stabil
|
16
|
3
|
Berilium
|
Be
|
4
|
9,012182(3)
|
9
Be
|
Stabil
|
2
|
2
|
Berkelium
|
Bk
|
97
|
[247]
1
|
247
Bk
|
1380 thn
|
|
7
|
Besi
(
Ferrum
)
|
Fe
|
26
|
55,845(2)
|
54
,
56
,
57
,
58
Fe
|
Stabil
|
8
|
4
|
Bismut
|
Bi
|
83
|
208,98040(1)
|
209
Bi
|
2,01
×
10
19
thn
|
15
|
6
|
Bohrium
|
Bh
|
107
|
[270]
1
|
270
Bh
|
60 dtk
|
7
|
7
|
Boron
|
B
|
5
|
10,811(7)
2
3
4
|
10
,
11
B
|
Stabil
|
13
|
2
|
Bromin
|
Br
|
35
|
79,904(1)
|
79
,
81
Br
|
Stabil
|
17
|
4
|
Darmstadtium
|
Ds
|
110
|
[281]
1
|
281
Ds
|
14 dtk
|
10
|
7
|
Disprosium
|
Dy
|
66
|
162,500(1)
2
|
156
,
158
,
160
,
161
,
162
,
163
,
164
Dy
|
Stabil
|
|
6
|
Dubnium
|
Db
|
105
|
[268]
1
|
268
Db
|
30 jam
|
5
|
7
|
Einsteinium
|
Es
|
99
|
[252]
1
|
252
Es
|
471,7 hri
|
|
7
|
Emas
(
Aurum
)
|
Au
|
79
|
196,966569(4)
|
197
Au
|
Stabil
|
11
|
6
|
Erbium
|
Er
|
68
|
167,259(3)
2
|
162
,
164
,
166
,
167
,
168
,
170
Er
|
Stabil
|
|
6
|
Europium
|
Eu
|
63
|
151,964(1)
2
|
153
Eu
|
Stabil
|
|
6
|
Fermium
|
Fm
|
100
|
[257]
1
|
257
Fm
|
100,5 hri
|
|
7
|
Flerovium
|
Fl
|
114
|
[289]
1
|
289
Fl
|
1,9 dtk
|
14
|
7
|
Fluorin
|
F
|
9
|
18,9984032(5)
|
19
F
|
Stabil
|
17
|
2
|
Fosforus
|
P
|
15
|
30,973762(2)
|
31
P
|
Stabil
|
15
|
3
|
Fransium
|
Fr
|
87
|
[223]
1
|
223
Fr
|
22 mnt
|
1
|
7
|
Gadolinium
|
Gd
|
64
|
157,25(3)
2
|
154
,
155
,
156
,
157
,
158
,
160
Gd
|
Stabil
|
|
6
|
Galium
|
Ga
|
31
|
69,723(1)
|
69
,
71
Ga
|
Stabil
|
13
|
4
|
Germanium
|
Ge
|
32
|
72,64(1)
|
70
,
72
,
73
,
74
Ge
|
Stabil
|
14
|
4
|
Hafnium
|
Hf
|
72
|
178,49(2)
|
176
,
177
,
178
,
179
,
180
Hf
|
Stabil
|
4
|
6
|
Hasium
|
Hs
|
108
|
[269]
1
|
277m
Hs
|
130 dtk
|
8
|
7
|
Helium
|
He
|
2
|
4,002602(2)
2
4
|
3
,
4
He
|
Stabil
|
18
|
1
|
Hidrogen
|
H
|
1
|
1,00794(7)
2
3
4
|
1
,
2
H
|
Stabil
|
1
|
1
|
Holmium
|
Ho
|
67
|
164,930 32(2)
|
165
Ho
|
Stabil
|
|
6
|
Indium
|
In
|
49
|
114,818(3)
|
113
In
|
Stabil
|
13
|
5
|
Iodin
|
I
|
53
|
126,904 47(3)
|
127
I
|
Stabil
|
17
|
5
|
Iridium
|
Ir
|
77
|
192,217(3)
|
191
,
193
Ir
|
Stabil
|
9
|
6
|
Iterbium
|
Yb
|
70
|
173,04(3)
2
|
168
,
170
,
171
,
172
,
173
,
174
,
176
Yb
|
Stabil
|
|
6
|
Itrium
|
Y
|
39
|
88,90585(2)
|
89
Y
|
Stabil
|
3
|
5
|
Kadmium
|
Cd
|
48
|
112,411(8)
2
|
106
,
108
,
110
,
111
,
112
,
114
Cd
|
Stabil
|
12
|
5
|
Kalifornium
|
Cf
|
98
|
[251]
1
|
251
Cf
|
898 thn
|
|
7
|
Kalium
|
K
|
19
|
39,0983(1)
|
39
,
41
K
|
Stabil
|
1
|
4
|
Kalsium
|
Ca
|
20
|
40,078(4)
2
|
40
,
42
,
43
,
44
,
46
Ca
|
Stabil
|
2
|
4
|
Karbon
|
C
|
6
|
12,0107(8)
2
4
|
12
,
13
C
|
Stabil
|
14
|
2
|
Klorin
|
Cl
|
17
|
35,453(2)
2
3
4
|
35
,
|
Stabil
|
17
|
3
|
Kobalt
|
Co
|
27
|
58,933195(5)
|
59
Co
|
Stabil
|
9
|
4
|
Kopernisium
|
Cn
|
112
|
[285]
1
|
285
Cn
|
30 dtk
|
12
|
7
|
Kripton
|
Kr
|
36
|
83,798(2)
2
3
|
80
,
82
,
83
,
84
,
86
Kr
|
Stabil
|
18
|
4
|
Kromium
|
Cr
|
24
|
51,9961(6)
|
50
,
52
,
53
,
54
Cr
|
Stabil
|
6
|
4
|
Kurium
|
Cm
|
96
|
[247]
1
|
247
Cm
|
1,56
×
10
7
thn
|
|
7
|
Lantanum
|
La
|
57
|
138,90547(7)
2
|
139
La
|
Stabil
|
|
6
|
Lawrensium
|
Lr
|
103
|
[266]
1
|
266
Lr
|
10 jam
|
3
|
7
|
Litium
|
Li
|
3
|
6,941(2)
2
3
4
5
|
6
,
7
Li
|
Stabil
|
1
|
2
|
Livermorium
|
Lv
|
116
|
[293]
1
|
293
Lv
|
53 mdtk
|
16
|
7
|
Lutesium
|
Lu
|
71
|
174,967(1)
2
|
175
Lu
|
Stabil
|
3
|
6
|
Magnesium
|
Mg
|
12
|
24,3050(6)
|
24
,
25
,
26
Mg
|
Stabil
|
2
|
3
|
Mangan
|
Mn
|
25
|
54,938045(5)
|
55
Mn
|
Stabil
|
7
|
4
|
Meitnerium
|
Mt
|
109
|
[278]
1
|
278
Mt
|
4 dtk
|
9
|
7
|
Mendelevium
|
Md
|
101
|
[258]
1
|
258
Md
|
51,5 hri
|
|
7
|
Molibdenum
|
Mo
|
42
|
95,94(2)
2
|
92
,
94
,
95
,
96
,
97
,
98
Mo
|
Stabil
|
6
|
5
|
Moskovium
|
Mc
|
115
|
[290]
1
|
290
Mc
|
650 mdtk
|
15
|
7
|
Natrium
|
Na
|
11
|
22,98976928(2)
|
23
Na
|
Stabil
|
1
|
3
|
Neodimium
|
Nd
|
60
|
144,242(3)
2
|
142
,
143
,
145
,
146
,
148
Nd
|
Stabil
|
|
6
|
Neon
|
Ne
|
10
|
20,1797(6)
2
3
|
20
,
21
,
22
Ne
|
Stabil
|
18
|
2
|
Neptunium
|
Np
|
93
|
[237]
1
|
237
Np
|
2,144
×
10
6
thn
|
|
7
|
Nihonium
|
Nh
|
113
|
[286]
1
|
286
Nh
|
9,5 dtk
|
13
|
7
|
Nikel
|
Ni
|
28
|
58,6934(2)
|
58
,
60
,
61
,
,
64
Ni
|
Stabil
|
10
|
4
|
Niobium
|
Nb
|
41
|
92,906 38(2)
|
93
Nb
|
Stabil
|
5
|
5
|
Nitrogen
|
N
|
7
|
14,0067(2)
2
4
|
14
,
15
N
|
Stabil
|
15
|
2
|
Nobelium
|
No
|
102
|
[259]
1
|
259
No
|
58 mnt
|
|
7
|
Oganeson
|
Og
|
118
|
[294]
1
|
294
Og
|
700 μdtk
|
18
|
7
|
Oksigen
|
O
|
8
|
15,9994(3)
2
4
|
,
,
|
Stabil
|
16
|
2
|
Osmium
|
Os
|
76
|
190,23(3)
2
|
187
,
188
,
189
,
190
,
192
Os
|
Stabil
|
8
|
6
|
Paladium
|
Pd
|
46
|
106,42(1)
2
|
102
,
104
,
105
,
106
,
108
,
110
Pd
|
Stabil
|
10
|
5
|
Perak
(
Argentum
)
|
Ag
|
47
|
107,8682(2)
2
|
107
,
109
Ag
|
Stabil
|
11
|
5
|
Platina
|
Pt
|
78
|
195,084(9)
|
192
,
194
,
195
,
196
,
198
Pt
|
Stabil
|
10
|
6
|
Plutonium
|
Pu
|
94
|
[244]
1
|
244
Pu
|
8,08
×
10
7
thn
|
|
7
|
Polonium
|
Po
|
84
|
[209]
1
|
209
Po
|
125,2 thn
|
16
|
6
|
Praseodimium
|
Pr
|
59
|
140,90765(2)
|
141
Pr
|
Stabil
|
|
6
|
Prometium
|
Pm
|
61
|
[145]
1
|
145
Pm
|
17,7 thn
|
|
6
|
Protaktinium
|
Pa
|
91
|
231,03588(2)
1
|
231
Pa
|
3,276
×
10
4
thn
|
|
7
|
Radium
|
Ra
|
88
|
[226]
1
|
226
Ra
|
1600 thn
|
2
|
7
|
Radon
|
Rn
|
86
|
[222]
1
|
222
Rn
|
3,8235 hri
|
18
|
6
|
Raksa
(
Hydrargyrum
)
|
Hg
|
80
|
200,59(2)
|
196
,
198
,
199
,
200
,
201
,
202
,
204
Hg
|
Stabil
|
12
|
6
|
Renium
|
Re
|
75
|
186,207(1)
|
185
Re
|
Stabil
|
7
|
6
|
Rodium
|
Rh
|
45
|
102,905 50(2)
|
103
Rh
|
Stabil
|
9
|
5
|
Roentgenium
|
Rg
|
111
|
[282]
1
|
282
Rg
|
2 mnt
|
11
|
7
|
Rubidium
|
Rb
|
37
|
85,4678(3)
2
|
85
Rb
|
Stabil
|
1
|
5
|
Rutenium
|
Ru
|
44
|
101,07(2)
2
|
96
,
98
,
99
,
100
,
101
,
102
,
104
Ru
|
Stabil
|
8
|
5
|
Ruterfordium
|
Rf
|
104
|
[267]
1
|
267
Rf
|
1,3 jam
|
4
|
7
|
Samarium
|
Sm
|
62
|
150,36(2)
2
|
144
,
149
,
150
,
152
,
154
Sm
|
Stabil
|
|
6
|
Seaborgium
|
Sg
|
106
|
[269]
1
|
269
Sg
|
14 mnt
|
6
|
7
|
Selenium
|
Se
|
34
|
78,96(3)
4
|
74
,
76
,
77
,
78
,
80
Se
|
Stabil
|
16
|
4
|
Seng
(
Zincum
)
|
Zn
|
30
|
65,409(4)
|
64
,
66
,
67
,
68
,
70
Zn
|
Stabil
|
12
|
4
|
Serium
|
Ce
|
58
|
140,116(1)
2
|
136
,
138
,
140
,
142
Ce
|
Stabil
|
|
6
|
Sesium
|
Cs
|
55
|
132,9054519(2)
|
133
Cs
|
Stabil
|
1
|
6
|
Silikon
|
Si
|
14
|
28,0855(3)
4
|
28
,
29
,
30
Si
|
Stabil
|
14
|
3
|
Skandium
|
Sc
|
21
|
44,955912(6)
|
45
Sc
|
Stabil
|
3
|
4
|
Stronsium
|
Sr
|
38
|
87,62(1)
2
4
|
84
,
86
,
87
,
88
Sr
|
Stabil
|
2
|
5
|
Talium
|
Tl
|
81
|
204,3833(2)
|
203
,
205
Tl
|
Stabil
|
13
|
6
|
Tantalum
|
Ta
|
73
|
180,94788(2)
|
180m
,
181
Ta
|
Stabil
|
5
|
6
|
Teknesium
|
Tc
|
43
|
[97]
1
|
97
Tc
|
4,21
×
10
6
thn
|
7
|
5
|
Telurium
|
Te
|
52
|
127,60(3)
2
|
120
,
122
,
123
,
124
,
125
Te
|
Stabil
|
16
|
5
|
Tembaga
(
Cuprum
)
|
Cu
|
29
|
63,546(3)
4
|
63
,
65
Cu
|
Stabil
|
11
|
4
|
Tenesin
|
Ts
|
117
|
[294]
1
|
294
Ts
|
51 mdtk
|
17
|
7
|
Terbium
|
Tb
|
65
|
158,92535(2)
|
159
Tb
|
Stabil
|
|
6
|
Timah
(
Stannum
)
|
Sn
|
50
|
118,710(7)
2
|
112
,
114
,
115
,
116
,
117
,
118
,
119
,
120
,
122
,
124
Sn
|
Stabil
|
14
|
5
|
Timbal
(
Plumbum
)
|
Pb
|
82
|
207,2(1)
2
4
|
204
,
206
,
207
,
208
Pb
|
Stabil
|
14
|
6
|
Titanium
|
Ti
|
22
|
47,867(1)
|
46
,
47
,
48
,
49
,
50
Ti
|
Stabil
|
4
|
4
|
Torium
|
Th
|
90
|
232,03806(2)
1
2
|
232
Th
|
1,405
×
10
10
thn
|
|
7
|
Tulium
|
Tm
|
69
|
168,93421(2)
|
169
Tm
|
Stabil
|
|
6
|
Uranium
|
U
|
92
|
238,02891(3)
1
2
3
|
238
U
|
4,468
×
10
9
thn
|
|
7
|
Vanadium
|
V
|
23
|
50,9415(1)
|
51
V
|
Stabil
|
5
|
4
|
Wolfram
|
W
|
74
|
183,84(1)
|
182
,
183
,
184
,
186
W
|
Stabil
|
6
|
6
|
Xenon
|
Xe
|
54
|
131,293(6)
2
3
|
126
,
128
,
129
,
130
,
131
,
132
,
134
Xe
|
Stabil
|
18
|
5
|
Zirkonium
|
Zr
|
40
|
91,224(2)
2
|
90
,
91
,
92
,
94
Zr
|
Stabil
|
4
|
5
|