số khối
[so˧˦ xoj˧˦]
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
(noun) mass number (number of protons and neutrons in an atomic nucleus)
Noun
Where it’s used:
Used
Toàn quốc & hải ngoại · Vietnam-wide & diaspora
Sources & notes
Imported from Wiktionary (CC BY-SA 4.0, retrieved 2026-07-29); community review pending. source ↗
Common questions
What does “số khối” mean?
(noun) mass number (number of protons and neutrons in an atomic nucleus)
Is “số khối” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.