Biology

Biology, 21.11.2019 01:31, krystalhurst97

Antoine henri becquerel was a french physicist who did a lot of work with fluorescent minerals. while conducting some experiments with minerals containing uranium, he discovered , but he did not know it at the time.

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Chemistry, 22.08.2019 11:30, jay0630

Becquerel made a hypothesis that fluorescent minerals give off

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Physics, 10.09.2019 23:30, kyrarix

Marie curie and her husband pierre were henri becquerel's graduate students when becquerel discovered spontaneous radiation. in 1903, the curies shared the nobel prize for physics with becquerel. based on the discovery of radioactivity, which statement best describes becquerel's influence on marie curie's work with radioactivity? o o becquerel proposed the concept of radiation and marie curie reproduced his experiments. becquerel's work proved that radiation was far too dangerous for anyone to experiment with. marie curie's work with becquerel made her more curious and prompted her to research and experiment with radioactivity. marie curie was such a talented scientist that becquerel's work did not have any influence on her discoveries. o

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Chemistry, 16.09.2019 07:00, Playboycxm

I'm kinda in a rush but take your time! thx! 1.what was henri becquerel studying when he accidentally discovered radioactivity? a.photography b.properties of black light c.properties of x-rays d.solar energy 2.when marie curie isolated uranium from pitchblende, she realized that the pitchblende was more radioactive than the uranium she had extracted. what did she conclude about her observations? a.pitchblende itself is a radioactive element b.the pitchblende sample contained an unknown radioactive element c.the pitchblende sample was defective d.pitchblende should be used as radiation therapy 3.henri becquerel's original hypothesis was that fluorescent minerals became excited by a solar energy and gave off x-rays. however, after he discovered uranium minerals emitted their own radiation without the of solar energy, he abandoned his hypothesis. why did becquerel abandon his first hypothesis? a.he was afraid of ridicule from the scientific community for being wrong b.he found new evidence that didn't support his original hypothesis c.he couldn't repeat the results in multiple experiments. d.he couldn't make the experiment work, so he came up with a new plan 4.marie curie had many "firsts". which of the following is not one of marie curie's firsts? a.first female nobel prize winner b.first female professor in the faculty of sciences c.first to suggest that atoms can change d.first to discover x-rays my answers: 1.d 2.b 3.a 4.d

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