How did Seaborg change the shape of the table?

Made it wider for transition metals

What happened in 1940's in Cali?

Seaborg began making new elements

Why did Mendeleev's table gain traction?

He left holes for future new elements

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History of the Periodic Table

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Questions from AACT videos #periodictablehistory

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Questions 18

Answers

1
What did an element's place on the table actually correspond with?
Date of discovery
Country of origin
Atomic # (# of p+)
Beauty of element
2
What number is Seaborgium?
43
1
106
100
3
Where was the 1860 conference?
Spain
Germany
France
Mexico
4
How did Seaborg change the shape of the table?
Made it wider for transition metals
Made it into a letter S for his name
Made it a circle
Eliminated elements that start with an H
5
What happened in 1940's in Cali?
A gold rush
Seaborg began making new elements
Mendeleev visited USC
Dropped 1st atomic bomb
6
What subjects did he not teach?
Russian language
Physics
Math
Chemistry
7
What is the most important tool in chemistry
the periodic table
the test tube
an eraser
your calculator
8
Why did Mendeleev's table gain traction?
Eliminated the competition
He left holes for future new elements
Deadly threats
Better tires
9
Where did Mendeleev grow up?
Phoenix, AZ
Paris, France
Berlin, Germany
Siberia, Russia
10
In what order did most elements fall in the table?
By color
In order of discovery
Alphabetically
Increasing atomic weight
11
What did De Chancourtois apply his periodic table to?
His grandma
Cooking
Geology
Math
12
Why is it called a 'periodic' table?
He went crazy in set periods
He noticed repeating patterns
It was sure to last through periods of history
He worked on it periodically
13
Who started doing experiments with an electron beam in 1913?
Dalton
Moseley
Einstein
Mendeleev
14
What column of elements was added after Mendeleev
Noble gases
Halogens
Transition metals
Alkaline Earth Metals
15
What did he do when he came across elements that didn't match up?
Ignored it
Pulled out his hair
Left blank spaces
Said a Russian curse word
16
What two elements are Mrs. Richardson's favorites?
Helium
Tungsten
Uranium
Boron
17
When did he publish his table?
1968
1969
1869
1689
18
What atomic # is Mendelevium?
101
43
100
92

History of the Periodic Table Flashcards | StudBud