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What else can I help you with?
Mendeleev's decision to leave gaps in his perodic table was supported by the discovery of?
Yes; in his time not every element was known. As every element in the same column (group) has more or less the same chemical properties, he predicted there should be an element that was not yet discovered at some places. For example, under Silicon, there was a gap where he suspected that, to complete the pattern, a new element was missing; he called it eka-silicon, and correctly predicted many of its properties. The new element was found later, with properties very similar to the predictions; it was eventually called Germanium.
What information was missing that caused people of the time to disagree with Copernicus' model of the universe?
The model everyone believed in was the Geocentric model, where they thought everything revolved around the earth. Copernicus' model of the universe is called the Heliocentric model, stating that everything revolved around the sun. The information that was missing was proof or evidence that the universe in fact did revolve around the sun. Said proof or evidence. was later provided by Galileo. His evidence stated that Jupiter has 4 moons revolving around it, not the earth. also. Venus goes through phases. When the moon is at one stage, Venus is also at a certain stage. In theory and in the Geocentric model, if the moon came to the same stage again, Venus would be at the same stage it was before when the moon was at this stage, which it was not.
How did the arrangement of the periodic table help scientists know when they had found the missing element?
The arrangement of the periodic table helped scientists predict the properties of missing elements based on their location in the table. For example, when Dmitri Mendeleev noticed gaps in the periodic table, he was able to predict the properties of the missing elements based on the neighboring elements, which ultimately led to the discovery of new elements like gallium and germanium.
Who found the missing mass of the atom's nucleus?
James Chadwick discovered the missing mass of the atom's nucleus. In 1932, he confirmed the presence of neutral particles called neutrons within the nucleus, explaining the discrepancy between the atomic mass and the sum of protons and electrons. This discovery was essential in shaping our understanding of atomic structure and the development of nuclear physics.
What value was true in predicting the properties for gaps in mendeleev's table?
The value of predicting the properties for gaps in Mendeleev's table was in providing a systematic way to identify missing elements and their properties based on the known trends of elements within the table. This predictive power allowed for the discovery and confirmation of new elements that filled the gaps, contributing to the organization and understanding of the periodic table.
What discovery provided the evidence that Wengner was missing?
The discovery that provided evidence of Wengner's absence was the finding of his personal belongings, including his wallet and phone, at the scene where he was last seen. Additionally, surveillance footage showed him leaving a location without any indication of returning. These clues raised concerns about his well-being and suggested that he may have gone missing under suspicious circumstances.
What piece of evidence was wegner missing to support his hypothesis?
Alfred Wegener's hypothesis of continental drift lacked a convincing mechanism to explain how continents could move across the Earth's surface. He proposed that continents plowed through the oceanic crust, but this idea was not supported by any physical evidence. It wasn't until the development of plate tectonics in the mid-20th century, which provided the concept of tectonic plates and their movement due to convection currents in the mantle, that Wegener's ideas gained broader acceptance.
What clues were missing from Alfred wegeners puzzle?
Alfred Wegener's puzzle regarding continental drift lacked crucial evidence from geology and paleontology, particularly the absence of a mechanism to explain how continents could move. He proposed that continents drifted through the ocean, but did not provide a satisfactory explanation for the forces driving this movement. Additionally, the lack of detailed fossil correlations and geological similarities across continents limited the acceptance of his theory until later advancements in plate tectonics provided the missing pieces.
Is Reachelle Marie Smith really missing?
apparently she was missing in the USA. No evidence to suggets she is in the UK.
Who discovered the neutrino?
The neutrino was first theorized by Wolfgang Pauli in 1930 to explain the missing energy in beta decay. The first experimental evidence for the neutrino was provided by Clyde Cowan and Frederick Reines in 1956 through the detection of electron antineutrinos emitted from a nuclear reactor.
What are the release dates for Haunting Evidence - 2005 Missing Teacher - 1.6?
Haunting Evidence - 2005 Missing Teacher - 1.6 was released on: USA: 19 July 2006
What are the release dates for Haunting Evidence - 2005 Missing in Paradise - 2.0?
Haunting Evidence - 2005 Missing in Paradise - 2.0 was released on: USA: 20 June 2007
What is missing if you only have claims in your paragraph?
If you only have claims in your paragraph, you are missing the proof or evidence to support your claims.
What are the release dates for Haunting Evidence - 2005 Missing in Ohio 2-10?
Haunting Evidence - 2005 Missing in Ohio 2-10 was released on: USA: 12 September 2007
What are the release dates for Haunting Evidence - 2005 Missing in Paradise 2-0?
Haunting Evidence - 2005 Missing in Paradise 2-0 was released on: USA: 20 June 2007
What are the ratings and certificates for Haunting Evidence - 2005 The Missing D-A- 1-3?
Haunting Evidence - 2005 The Missing D-A- 1-3 is rated/received certificates of: USA:TV-14
What are the release dates for Haunting Evidence - 2005 Missing Teacher 1-6?
Haunting Evidence - 2005 Missing Teacher 1-6 was released on: USA: 19 July 2006
