Define mass number/ nucleon number as the total number of protons and neutrons in the nucleus of an atom
Standard detail
C2.2.4
Depth 2Parent ID: 64BAF6974F4A4C6EA7FAAC3FB4EA55A4Standard set: Science 0654 (2025-): Chemistry
Original statement
Quick facts
- Statement code
- C2.2.4
- List ID
- 4
- Standard ID
- 13EF3738BA2A44DEAE02A300C10F92F4
- Subject
- Science
- Grades
- 09, 10, 11, 12
- Ancestor IDs
- 64BAF6974F4A4C6EA7FAAC3FB4EA55A4EC1BCB51A6CF40A8BD2B8341F7A7DA0C
- Source document
- Science 0654 (2025-)
- License
- CC BY 4.0 US