4f and 5f block elements 1. Name the 4f – block elements and give their electronic configuration. Why are Sc‚ Y‚ and La included in the list of lanthanide elements 2. What is lanthanide contraction? How does it affect the chemical behavior of Zr/Hf‚ Hb/Ta‚ Mo/W ? 3. Contrast the electronic spectra of the lanthanide and transition metal ions. Why do the lanthanide ions give rise to very sharp bands in their electronic spectra and why are the magnetic properties of their complexes little affected by
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When I come to writer’s block I usually will sit and try to talk to myself so I can overcome the block because when talking out loud it usually jogs my memory back to where I needed it to be. Not only does talking out loud help me remember what I was trying to write about it helps me keep on focus and stay on track to what I was trying to do. I feel that it helps a writer by trying to express what they are trying to say and it is my way of getting my thoughts together. My other problem that comes
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and harder. As she is walking Rebecca sees a concrete square with two windows in the distance. From even outside you can tell that the concrete block is dirty and smelly. That concrete block has a terrible man in it who has a drinking problem which you can smell from the outside. That man is someone who Rebecca has to call her father‚ and that concrete block is home sweet home to her… Sadly. As Rebecca slowly walks up to her house‚ the smell
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Who is Your Favorite Character and Why? October 7‚ 2010 My favorite character from the novel These Boots Are Made for Stalking by Lisi Harrison is Massie Block. Massie is a fun‚ fashionable‚ and sometimes feisty friend. But at the end of the day she is always having fun whether with bean her lovable dog‚ Kendra and William‚ her parents‚ and The Pretty Committee‚ her infamous group of friends that include Claire‚ her guest house roommate‚ Alicia‚ Massie’s Fannish(fake Spanish.) BFF‚ Dylan‚ a
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The hypothesis for this lab is if strawberry DNA is separated from other components‚ then when it is placed in a insoluble solution the DNA can eventually be isolated. DNA is deoxyribonucleic acid. Its a self replacing material present in all living organisms as the main constituent of chromosomes. It is the fundamental and distinctive characteristics of someone or something‚ especially when regarded as unchangeable. DNA extraction is the removal of deoxyribonucleic acid from the cells or viruses
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In Watership Down‚ a group of rabbits consisting of ‚Hazel‚ Fiver‚ and their companions travel away in the search of a new warren. On their journey‚ Hazel and the rabbits he brought went through many troubles including‚ crossing a river and Cowslip’s warren‚ a warren that was surrounded by snares‚ until they reach the down. Though they had found their home they wouldn’t keep it for long if they didn’t find does. Kehaar‚ a gull they found at the down‚ told them how to find does. They traveled to
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Lady Dai also called as Xin Zhu and Marquise of Dai is known as one of the best Ancient bodies ever Preserved! Surprisingly Xin Zhu is a 2‚100 year old mummy and amazed scientists around the world because of her preservation. Lady Dai was discovered in a hill known as Mawangdui‚ in Changsha‚ Hunan‚ China. The remains of her body were stumbled on by workers digging an air raid shelter for a hospital in 1971 . As well as her tomb there also were two other bodies found‚ her husband and a young man
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As he stood in front of the door‚ the door that either held the Lady or the Tiger‚ his mind was surprisingly calm. He knew the princess would make the right choice. He trusted her; he loved her. His hand felt the cool metal of the doorknob. He heard it click as it was turned as if the silence of the arena wasn’t already enough to make the hair on the back of his neck stand up. He wasn’t nervous‚ no. As he gently pulled on the cloth-silenced door‚ he merely wondered what fate the princess chose
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The Déjà vu Experience and its Triggers and Results The déjà vu illusion is generally known as the blending of the subjective and objective evaluations of familiar and unfamiliar situations or scenarios. Scholars from different sub disciplines have been interested in this form of illusion for over 170 years. The experience is considered to be unique because it lacks any known or expected trigger or response. The experience was not studied during the psychological research era because of its holes
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After living for years in underground with the acceptance of his “invisibility” ‚ the narrator grasps the idea that there may be a hopeful future for the negroes of American society as Ralph Ellison’s Invisible Man closes to interpretation. As the narrator takes time to reminisce about his grandfather’s death and the last words of advice he heard from him‚ he starts to see the same light at the end of the tunnel that his grandfather described in the last junctures of his life. Ellison paints the
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