Define the terms atomic number and mass number
The atomic number, Z, is the number of protons in the nucleus. The mass number ,A, is the total number of protons and neutrons in the atom.
LB
Related Chemistry A Level answers
All answers ▸Describe the perfect ionic model
Describe the structure and bonding of benzene.
Describe the stages of a heterogeneous catalyst reaction route.
Describe and explain the difference in base strength between ammonia, primary aliphatic and primary aromatic amines.