Question 11
What is the mass number of argon?
Periodic Table lookup: argon, Ar; atomic number 18; the mass value used for this exercise is 40.
Periodic Table lookup: argon, Ar; atomic number 18; the mass value used for this exercise is 40.
Cambridge Secondary (7-9). Stage 9. MCE Science. Workbook - Unit 4: The Structure of the Atom and the Periodic Table - Question 11
Cambridge Secondary (7-9) · Unit 4: The Structure of the Atom and the Periodic Table
