2007-05-26 18:29:11 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Actinium is a d-block element and it has one 6d electron.
2007-05-26 19:00:24 · answer #1 · answered by manasa r 2 · 0⤊ 0⤋
Actinium is a F-block element. Check the atomic distribution:
Ac89= [Rn]86,7S2, 6F1 that is the electronioc distribution of actinium.
2007-05-26 20:31:40 · answer #2 · answered by M.Z_Biotech 2 · 0⤊ 0⤋
Actinium is an F-block element since its atomic number is 57 and F-block elements are 57-71(lanthinide series) and 89-103(actinide series)
2007-05-26 18:51:05 · answer #3 · answered by xcowboys_mavericksx 1 · 0⤊ 0⤋
Actinium is a d- block element
2007-05-26 18:36:04 · answer #4 · answered by Anonymous · 0⤊ 0⤋
actinium is a transition metal
having 7s2 as outre shell and 6d1
2007-05-26 18:59:14 · answer #5 · answered by maussy 7 · 0⤊ 0⤋
d-block.
It is because Ac is not in the lanthanides or actinides groups.
2007-05-27 03:40:18 · answer #6 · answered by Harry Christianto Tjondro E2M2 2 · 0⤊ 0⤋
f
2007-05-26 23:38:11 · answer #7 · answered by Abhy 3 · 0⤊ 0⤋