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1
(1)
What is the number of
Al?
(2)
What is the number of
B?
(3)
What is the number of
Na?
(4)
What is the number of
P?
(5)
What is the number of
O?
(6)
What is the number of
S?
(7)
What is the number of
Be?
(8)
What is the number of
V?
(9)
What is the number of
Ne?
(10)
What is the number of
C?
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