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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.
Is Reachelle Marie Smith really missing?
apparently she was missing in the USA. No evidence to suggets she is in the UK.
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
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 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 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 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 Teacher 1-6?
Haunting Evidence - 2005 Missing Teacher 1-6 was released on: USA: 19 July 2006
Will you have to appeal for missing a call from unemployment?
Not likely, from the limited information you provided.
Why is it difficult to record the recent past?
Because some of the evidence is missing.
What is the evidence missing from Alfred Wegener's continental drift theory?
The only evidence that Alfred Wegener did not have was the mechanism that drove the Continental Drift, he had evidence to support that the continents were once joined together, but did not have the means to postulate how the continents had actually moved to their present positions. He did however postulate the theory of a "layered Earth" consisting of a rigid surface (continents) upon a liquid/plastic like substance (mantle) and that if pressure was exerted on the surface layer, it would move thus, and if the pressure was removed the surface would return to its original state. It was only until c. 1890, when the Geophysicist Arthur Holmes came up with the theory of convection currents in the mantle being responsible for Continental Drift.
