Oddi wrth Wicipedia, y gwyddoniadur rhydd.
Rhif |
Elfen |
Sym. |
1 |
hydrogen |
H |
2 |
heliwm |
He |
3 |
lithiwm |
Li |
4 |
beriliwm |
Be |
5 |
boron |
B |
6 |
carbon |
C |
7 |
nitrogen |
N |
8 |
ocsigen |
O |
9 |
fflworin |
F |
10 |
neon |
Ne |
11 |
sodiwm |
Na |
12 |
magnesiwm |
Mg |
13 |
alwminwm |
Al |
14 |
silicon |
Si |
15 |
ffosfforws |
P |
16 |
sylffwr |
S |
17 |
clorin |
Cl |
18 |
argon |
Ar |
19 |
potasiwm |
K |
20 |
calsiwm |
Ca |
21 |
scandiwm |
Sc |
22 |
titaniwm |
Ti |
23 |
vanadiwm |
V |
24 |
cromiwm |
Cr |
25 |
manganîs |
Mn |
26 |
haearn |
Fe |
27 |
cobalt |
Co |
28 |
nicel |
Ni |
29 |
copr |
Cu |
30 |
sinc |
Zn |
31 |
galiwm |
Ga |
32 |
germaniwm |
Ge |
33 |
arsenig |
As |
34 |
seleniwm |
Se |
35 |
bromin |
Br |
36 |
krupton |
Kr |
37 |
rwbidiwm |
Rb |
38 |
strontiwm |
Sr |
39 |
ytriwm |
Y |
40 |
sirconiwm |
Zr |
41 |
niobiwm |
Nb |
42 |
molybdenwm |
Mo |
43 |
technetiwm |
Tc |
44 |
rutheniwm |
Ru |
45 |
rhodiwm |
Rh |
46 |
paladiwm |
Pd |
47 |
arian |
Ag |
48 |
cadmiwm |
Cd |
49 |
indiwm |
In |
50 |
tun |
Sn |
51 |
antimoni |
Sb |
52 |
telwriwm |
Te |
53 |
ïodin |
I |
54 |
xenon |
Xe |
55 |
cesiwm |
Cs |
56 |
bariwm |
Ba |
57 |
lanthanwm |
La |
58 |
ceriwm |
Ce |
59 |
praseodymiwm |
Pr |
60 |
neodymiwm |
Nd |
61 |
promethiwm |
Pm |
62 |
samariwm |
Sm |
63 |
europiwm |
Eu |
64 |
gadoliniwm |
Gd |
65 |
terbiwm |
Tb |
66 |
dysprosiwm |
Dy |
67 |
holmiwm |
Ho |
68 |
erbiwm |
Er |
69 |
thuliwm |
Tm |
70 |
yterbiwm |
Yb |
71 |
lwtetiwm |
Lu |
72 |
hafniwm |
Hf |
73 |
tantalwm |
Ta |
74 |
twngsten |
W |
75 |
rheniwm |
Re |
76 |
osmiwm |
Os |
77 |
iridiwm |
Ir |
78 |
platinwm |
Pt |
79 |
aur |
Au |
80 |
mercwri |
Hg |
81 |
thaliwm |
Tl |
82 |
plwm |
Pb |
83 |
bismwth |
Bi |
84 |
poloniwm |
Po |
85 |
astatin |
At |
86 |
radon |
Rn |
87 |
ffransiwm |
Fr |
88 |
radiwm |
Ra |
89 |
actiniwm |
Ac |
90 |
thoriwm |
Th |
91 |
protactiniwm |
Pa |
92 |
wraniwm |
U |
93 |
neptwniwm |
Np |
94 |
plwtoniwm |
Pu |
95 |
americiwm |
Am |
96 |
cwriwm |
Cm |
97 |
berkeliwm |
Bk |
98 |
californiwm |
Cf |
99 |
einsteiniwm |
Es |
100 |
fermiwm |
Fm |
101 |
mendelefiwm |
Md |
102 |
nobeliwm |
No |
103 |
lawrenciwm |
Lr |
104 |
rutherfordiwm |
Rf |