What kind of reaction is 21,02 → 2H,0 + 0,2 A. Single replacement
B. Double-replacement
C. Decomposition
D. Synthesis

As you move from right to left on the periodic table the atomic radius fill in the blank

Idon’t know how to solve this question

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg