the element copper has 29 protons. what is the atomic number of copper?

The atomic number of copper is 29.

Quick Scoop

• The atomic number of an element is defined as the number of protons in the nucleus of its atoms.

• Since copper atoms have 29 protons, its atomic number is 29.

• On the periodic table, copper is listed with the symbol Cu and atomic number 29 in period 4, group 11.