CH-1961
Relative atomic and molecular mass
Chemistry · Secondary 4 · Easy · Relative atomic and molecular mass
Element X has proton number 11 and nucleon number 23. Element Y has proton number 17 and nucleon number 35. The formula of the compound formed between X and Y is XY. What is its relative molecular mass?
- 46
- 58
- 70
- 23
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