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History of the periodic table Flashcards | StudBud

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History of the periodic table

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Questions 8

Answers

1
Why did elements like argon and potassium appear in the wrong place in the original order?
Mendeleev measured the mass wrong
Due to the existence of heavy isotopes
They had not yet been discovered
2
Which of the following statements about Newlands discoveries is incorrect?
He included all elements that exist on Earth
He arranged based on order of mass
He called his table 'the law of octaves'
He noticed the properties of every 8th element was similar
3
How did Mendeleev arrange the elements?
Randomly
In order of atomic number
In order of atomic mass
Alphabetically
4
Who discovered the most recent version of the periodic table?
Dmitri Mendeleev
John Newland
Albert Einstein
John Dalton
5
Which of the following statements is incorrect about Mendeleevs discoveries?
Arranged them so that a pattern in properties could be seen
All elements fit his method well
He left gaps for undiscovered elements
He used the table to predict properties of unknown elements
6
How are the elements arranged today?
Alphabetically
In order of atomic number
In order of atomic mass
Using properties
7
How did John Dalton arrange the elements?
In order of atomic weights
In order of atomic number
In order of atom size
Using the elements properties
8
Who was the first person to suggest how to arrange the elements?
Dmitri Mendeleev
Albert Einstein
John Newlands
John Dalton