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Periodic Table Flashcards | StudBud
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Periodic Table
Periodic Table
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decoding the periodic table middle school level #chemistry #middleschool #periodictable
Flashcards
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Questions
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Answers
1
What is the atomic number of the noble gas Xenon?
18
131
5
54
2
What element does the following diagram represent if hearts represent electrons?
Be
O
Fe
S
3
This element has 12 protons.
Zn
Hg
Mg
C
4
This element is a metalloid.
Ar (18)
K (19)
Cl (17)
Si (14)
5
_____ electrons are in the outermost energy level of an atom.
valence
some
all
extra
6
Alkaline Earth metals are in group
12
2
17
1
7
The periodic table has _______ rows.
10
7
9
8
8
How many valence electrons does Nitrogen have?
3
15
7
5
9
Calcium (#20) has how many shells?
20
40
2
4
10
Boron (# 5) has how many shells?
13
3
1
2
