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The Periodic Table of Elements! Flashcards | StudBud
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The Periodic Table of Elements!
The Periodic Table of Elements!
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Flashcards
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Questions
11
Answers
1
How many elements were known in Mendeleev's time?
70
63
64
2
How many have been added?
30 synthetic elements
21 synthetic elements
24 synthetic elements
3
Mendeleev developed his Periodic Table in the 1870s
True
False
4
Who created the Periodic Table of Elements?
Dmitre Mendelee
Dmitri Mendeleev
Demitri Mendle
5
Mendeleev place the elements in rows based upon their atomic mass.
False
True
6
How many Inner Transition metals are there?
28
30
20
24
7
How many elements are there now?
170
200
118
120
8
The added 24 synthetic elements have what range of atomic numbers?
95-118
68-100
9
How many Transition metals are there?
40
38
49
10
There are 26 standard metals
False
True
11
There are 24 nonmetals in the Periodic Table
True
False
