Twngsten

Twngsten
Element 1: Hydrogen (H), Anfetelau eraill
Element 2: Heliwm (He), Nwyon nobl
Element 3: Lithiwm (Li), Metelau alcalïaidd
Element 4: Beryliwm (Be), Metel daear alcalïaidd
Element 5: Boron (B), Meteloidau
Element 6: Carbon (C), Anfetelau eraill
Element 7: Nitrogen (N), Anfetelau eraill
Element 8: Ocsigen (O), Anfetelau eraill
Element 9: Fflworin (F), Halogenau
Element 10: Neon (Ne), Nwyon nobl
Element 11: Sodiwm (Na), Metelau alcalïaidd
Element 12: Magnesiwm (Mg), Metel daear alcalïaidd
Element 13: Alwminiwm (Al), Metelau eraill
Element 14: Silicon (Si), Meteloidau
Element 15: Ffosfforws (P), Anfetelau eraill
Element 16: Swlffwr (S), Anfetelau eraill
Element 17: Clorin (Cl), Halogenau
Element 18: Argon (Ar), Nwyon nobl
Element 19: Potasiwm (K), Metelau alcalïaidd
Element 20: Calsiwm (Ca), Metel daear alcalïaidd
Element 21: Scandiwm (Sc), Elfennau trosiannol
Element 22: Titaniwm (Ti), Elfennau trosiannol
Element 23: Fanadiwm (V), Elfennau trosiannol
Element 24: Cromiwm (Cr), Elfennau trosiannol
Element 25: Manganîs (Mn), Elfennau trosiannol
Element 26: Haearn (Fe), Elfennau trosiannol
Element 27: Cobalt (Co), Elfennau trosiannol
Element 28: Nicel (Ni), Elfennau trosiannol
Element 29: Copr (Cu), Elfennau trosiannol
Element 30: Sinc (Zn), Elfennau trosiannol
Element 31: Galiwm (Ga), Metelau eraill
Element 32: Germaniwm (Ge), Meteloidau
Element 33: Arsenig (As), Meteloidau
Element 34: Seleniwm (Se), Anfetelau eraill
Element 35: Bromin (Br), Halogenau
Element 36: Crypton (Kr), Nwyon nobl
Element 37: Rwbidiwm (Rb), Metelau alcalïaidd
Element 38: Strontiwm (Sr), Metel daear alcalïaidd
Element 39: Ytriwm (Y), Elfennau trosiannol
Element 40: Sirconiwm (Zr), Elfennau trosiannol
Element 41: Niobiwm (Nb), Elfennau trosiannol
Element 42: Molybdenwm (Mo), Elfennau trosiannol
Element 43: Technetiwm (Tc), Elfennau trosiannol
Element 44: Rwtheniwm (Ru), Elfennau trosiannol
Element 45: Rhodiwm (Rh), Elfennau trosiannol
Element 46: Paladiwm (Pd), Elfennau trosiannol
Element 47: Arian (Ag), Elfennau trosiannol
Element 48: Cadmiwm (Cd), Elfennau trosiannol
Element 49: Indiwm (In), Metelau eraill
Element 50: Tun (Sn), Metelau eraill
Element 51: Antimoni (Sb), Meteloidau
Element 52: Telwriwm (Te), Meteloidau
Element 53: Ïodin (I), Halogenau
Element 54: Senon (Xe), Nwyon nobl
Element 55: Cesiwm (Cs), Metelau alcalïaidd
Element 56: Bariwm (Ba), Metel daear alcalïaidd
Element 57: Lanthanwm (La), Lanthanidau
Element 58: Ceriwm (Ce), Lanthanidau
Element 59: Praseodymiwm (Pr), Lanthanidau
Element 60: Neodymiwm (Nd), Lanthanidau
Element 61: Promethiwm (Pm), Lanthanidau
Element 62: Samariwm (Sm), Lanthanidau
Element 63: Ewropiwm (Eu), Lanthanidau
Element 64: Gadoliniwm (Gd), Lanthanidau
Element 65: Terbiwm (Tb), Lanthanidau
Element 66: Dysprosiwm (Dy), Lanthanidau
Element 67: Holmiwm (Ho), Lanthanidau
Element 68: Erbiwm (Er), Lanthanidau
Element 69: Thwliwm (Tm), Lanthanidau
Element 70: Yterbiwm (Yb), Lanthanidau
Element 71: Lwtetiwm (Lu), Lanthanidau
Element 72: Haffniwm (Hf), Elfennau trosiannol
Element 73: Tantalwm (Ta), Elfennau trosiannol
Element 74: Twngsten (W), Elfennau trosiannol
Element 75: Rheniwm (Re), Elfennau trosiannol
Element 76: Osmiwm (Os), Elfennau trosiannol
Element 77: Iridiwm (Ir), Elfennau trosiannol
Element 78: Platinwm (Pt), Elfennau trosiannol
Element 79: Aur (Au), Elfennau trosiannol
Element 80: Mercwri (Hg), Elfennau trosiannol
Element 81: Thaliwm (Tl), Metelau eraill
Element 82: Plwm (Pb), Metelau eraill
Element 83: Bismwth (Bi), Metelau eraill
Element 84: Poloniwm (Po), Meteloidau
Element 85: Astatin (At), Halogenau
Element 86: Radon (Rn), Nwyon nobl
Element 87: Ffranciwm (Fr), Metelau alcalïaidd
Element 88: Radiwm (Ra), Metel daear alcalïaidd
Element 89: Actiniwm (Ac), Actinidau
Element 90: Thoriwm (Th), Actinidau
Element 91: Protactiniwm (Pa), Actinidau
Element 92: Wraniwm (U), Actinidau
Element 93: Neptwniwm (Np), Actinidau
Element 94: Plwtoniwm (Pu), Actinidau
Element 95: Americiwm (Am), Actinidau
Element 96: Curiwm (Cm), Actinidau
Element 97: Berkeliwm (Bk), Actinidau
Element 98: Califforniwm (Cf), Actinidau
Element 99: Einsteiniwm (Es), Actinidau
Element 100: Ffermiwm (Fm), Actinidau
Element 101: Mendelefiwm (Md), Actinidau
Element 102: Nobeliwm (No), Actinidau
Element 103: Lawrenciwm (Lr), Actinidau
Element 104: Rutherfordiwm (Rf), Elfennau trosiannol
Element 105: Dubniwm (Db), Elfennau trosiannol
Element 106: Seaborgiwm (Sg), Elfennau trosiannol
Element 107: Bohriwm (Bh), Elfennau trosiannol
Element 108: Hassiwm (Hs), Elfennau trosiannol
Element 109: Meitneriwm (Mt)
Element 110: Darmstadtiwm (Ds)
Element 111: Roentgeniwm (Rg)
Element 112: Coperniciwm (Cn), Elfennau trosiannol
Element 113: Nihoniwm (Nh)
Element 114: Fflerofiwm (Fl)
Element 115: Moscofiwm (Mc)
Element 116: Lifermoriwm (Lv)
Element 117: Tenesin (Ts)
Element 118: Oganeson (Og)
Twngsten
Twngsten mewn cynhwysydd
Symbol W
Rhif 74
Dwysedd 19.25  g·cm−3

Elfen gemegol yw twngsten (symbol W). Ei rif atomig yw 74, ac mae'n fetel llwyd neu gwyn.

Chwiliwch am twngsten
yn Wiciadur.