Most elements in the periodic table are
A) metals.
B) non-metals.
C) noble gases.
D) semi-metals.
Correct Answer:
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Q5: Which is not true?
A)Mendeleev ended each row
Q6: Which element has the chemical symbol,P?
A)lead
B)phosphorus
C)platinum
D)potassium
Q7: A sample of pure lithium carbonate contains
Q8: Mendeleev arranged the elements according to
A)atomic number
Q9: The observation that 4.0 g of hydrogen
Q11: The observation that 15.0 g of hydrogen
Q12: The vertical columns of the periodic table
Q13: Methane and oxygen react to form carbon
Q14: What is the chemical symbol for manganese?
A)Hg
B)Mg
C)Mn
D)Na
Q15: Which of the following statements does not
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