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History of the Periodic Table Flashcards | StudBud
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History of the Periodic Table
History of the Periodic Table
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1
Which column has an energy level equal to their period number - 1?
3
Lanthanides
13
1
2
Which of these is not true for elements in the same column?
None, all are true.
Same number of valence electrons.
Similar electron distribution.
Similar chemical properties.
3
Whose Noble gas distribution is pictured below?
Se
Sn
Sb
Kr
4
Which column has an energy level equal to their period number - 2?
1
Lanthanides
13
3
5
Who arranged the periodic table by increasing atomic mass?
Mosely
Mendeleev
6
Properties of elements repeat when elements are arranged by _______ atomic number.
Increasing
Decreasing
Neither, it's by atomic mass.
7
Which statement is false for Noble gases?
None, all options are truen.
They contain a full outer energy level.
They are stable.
They have 6 valence electrons.
8
Which column has an energy level equal to their period number?
12
Lanthanides
1
3
9
Who discovered that each element has a unique atomic number?
Mendeleev
Moseley
10
Another term for a 'group' on the periodic table is?
Family
Period
Column
