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Duplicate of The Periodic Table Flashcards | StudBud
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Duplicate of The Periodic Table
Duplicate of The Periodic Table
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Periodic Table Review
Flashcards
17 cards
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Questions
17
Answers
1
How many valence electrons does the element Magnesium (12) have?
4
2
1
3
2
Explain why elements in a group have similar properties.
Because they are all metals
Because they all have the same number of energy levels
Because they all have the same number of protons
they have the same number of valence electrons
3
Which elements are in the same group/family of the periodic table?
Na and Mg
Na and H
K and Ca
Li and Be
4
How many valence electrons do the halogens have?
1
7
8
2
5
Which elements are in the same period?
N and O
F and Cl
O and S
N and P
6
Which is the only group on the periodic table that is stable?
Halogens
Alkali Metals
Alkaline Earth Metals
Noble Gases
7
A Russian chemist who is given credit for first arranging the elements in a usable manner.
Rutherford
Dalton
Moseley
Mendeleev
8
This person synthesized the trans-uranium elements
Seaborg
Mendeleev
Newlands
Moseley
9
How is the periodic table organized?
Periods are vertical and groups are horizontal
Periods are horizontal and groups are vertical
Periods and groups are horizontal
Periods and groups are vertical
10
In a modern periodic table, elements are arranged in order of?
number of neutrons
number of isotopes
atomic mass
atomic number
11
Elements that have the same number of valence electrons are?
called transition metals
only called noble gases
in the same group
in the same period
12
Most of the elements on the periodic table are
Liquids
Gases
Non-metals
Metals
13
This person proposed that the PT should not be arranged by atomic mass
Mendeleev
Newlands
Seaborg
Moseley
14
Who provided a correct basis for ordering elements on the periodic table?
Mendeleev
Rutherford
Thomson
Mosley
15
How many groups does the periodic table have?
8
7
18
16
16
What is the mass of a chlorine isotope that has 17 protons, 17 electrons, and 10 neutrons?
34
36
35
27
17
Which two elements have the most similar chemical properties?
K and Cl
K and Na
K and Ca
K and S
