Question

Nowadays, “amu” is replaced by ____

(a) u

(b) g

(c) kg

(d) am

This question was posed to me during an internship interview.

My enquiry is from Atomic and Molecular Masses in section Chemistry Basic Concepts of Chemistry – Class 11

Answer 1

The correct choice is (a) u

To explain I would say: Presently, “amu” has been replaced by “u”. Atomic mass unit is “amu”, but now as it has been changed to “u”, & now known as unified mass. One unified atomic mass unit is the mass of one nucleon and is also equal to 1 g/mol.