atomic number
Concise Oxford English Dictionary © 2008 Oxford University Press:
atomic number
▶noun Chemistry the number of protons in the nucleus of an atom, which is characteristic of a chemical element and determines its place in the periodic table.
'atomic number' also found in these Oxford entries:
actinide
- actinium
- aluminium
- americium
- antimony
- argon
- arsenic
- astatine
- barium
- berkelium
- beryllium
- bismuth
- bohrium
- boron
- bromine
- cadmium
- caesium
- calcium
- californium
- carbon
- cerium
- chlorine
- chromium
- cobalt
- copper
- curium
- darmstadtium
- dubnium
- dysprosium
- einsteinium
- element
- erbium
- europium
- fermium
- fluorine
- francium
- gadolinium
- gallium
- germanium
- gold
- hafnium
- hassium
- helium
- holmium
- hydrogen
- indium
- iodine
- iridium
- iron
