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What value was there in predicting the properties for gaps in Mendeleevs table?
DiscoVery of new elements
What were mendeleevs discoveries and predictions and discoveries abot the periodic table?
Mendeleev predicted that properties of elements are periodic function of atomic mass. He demonstrated it by creating a table.
Do elements of the same group or period have more similar characteristics?
Groups. For example, the halogens share properties, the noble gases share properties.
What are the properties that include system file properties?
automatically updated properties
Does strontium share more properties with yttrium or barium?
yttrium
Which kind of properties fell into families or groups in Mendeleevs system of elements?
Non-metals and Metalloids
Did Mendeleevs group his elements with those of similar properties?
Yes, this affirmation is true.
What value was there in predicting the properties for gaps in Mendeleevs table?
DiscoVery of new elements
Mendeleevs periodic table was useful because it enabled scientists to predict properties of unknown?
elements
How could Mendeleevs table be used to predict the properties of elements that had not been discovered?
Comparing the properties of the new element with the properties of the other elements in the group we can make this prediction.
Which matches Mendeleevs prediction for the properties of eka-aluminum?
It would be a soft metal with a low melting point.
What were mendeleevs discoveries and predictions and discoveries abot the periodic table?
Mendeleev predicted that properties of elements are periodic function of atomic mass. He demonstrated it by creating a table.
Main idea of mendeleevs first periodic table?
In Mendeleev's periodic table, the elements were arranged in the increasing order of their atomic masses and repeating periodic properties.
In Mendeleevs periodic table elements in each column had similar?
That some had the same among of Protons and Neutrons. That each coumn had a preiod!
What effect did the discovery of the gallium have on the acceptance of Mendeleev's table?
The close match between Mendeleevs prediction and the actual properties of new elements showed how usefullhis pariodic tabel could be.
What effects did the discovery of gallium have on the acceptance of Mendeleev's tables?
The close match between Mendeleevs prediction and the actual properties of new elements showed how usefullhis pariodic tabel could be.
How could you use Mendeleevs periodic table to identitify new elements?
He left gaps for the new elements. The properties could be estimated from the space left by him.
