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#1
Q: Symbol and atomic number of Hydrogen?
A: H, atomic number 1.
#2
Q: Symbol and atomic number of Carbon?
A: C, atomic number 6.
#3
Q: Symbol and atomic number of Oxygen?
A: O, atomic number 8.
#4
Q: Symbol and atomic number of Sodium?
A: Na, atomic number 11.
#5
Q: Symbol and atomic number of Calcium?
A: Ca, atomic number 20.
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