Block, SkipCaptcha, nsAm_Govt_101RO, nsAm_Govt_101RW, nsAm_Govt_101_ta, nsTeam2RO, nsTeam2RW, nsTeam2_talkRO, nsTeam2_talkRW
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'''Name:''' Actinium
'''Symbol:''' Ac
'''Atomic Number:''' 89
'''Atomic Mass:''' 227.0 amu
'''Number of electrons:''' 89
'''Classification:''' Rare earth
'''Crystal structure:''' Cubic
'''Color:''' Silvery
'''Date of Discovery:''' 1899
'''Name of Discoverer:''' Andre Debierne
'''Name Origin:''' The Greek word ''aktinos'', ray.
'''Uses:''' Unknown.
'''Obtained from:''' Unknown as it is extremely rare.
'''Symbol:''' Ac
'''Atomic Number:''' 89
'''Atomic Mass:''' 227.0 amu
'''Number of electrons:''' 89
'''Classification:''' Rare earth
'''Crystal structure:''' Cubic
'''Color:''' Silvery
'''Date of Discovery:''' 1899
'''Name of Discoverer:''' Andre Debierne
'''Name Origin:''' The Greek word ''aktinos'', ray.
'''Uses:''' Unknown.
'''Obtained from:''' Unknown as it is extremely rare.