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Chemistry, 09.12.2020 17:10 morganberry7057

4. Which of the following elements is found in the same group on the periodic table as hydrogen (H)?
A. aluminum (AI)
B. calcium (Ca)
C. magnesium (Mg)
D. sodium (Na)
5. Which of these elements is found in its natural state as a gas?
A. argon (Ar)
B. boron (B)
C. phosphorus (P)
D. potassium (K)


4. Which of the following elements is found in the same group on the periodic table as hydrogen (

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