Answer:
The answer to your question is below
Explanation:
Element Atomic number Atomic mass # proton # neutron # electron
Copper 29 64 29 35 29
Fluorine 9 19 9 10 9
Lead 82 207.2 82 125 82
Sodium 11 23 11 12 11
Nitrogen 7 14 7 7 7
47.- Atomic number, Atomic mass, number of protons, neutrons and electrons
48.- Element, atomic mass, number of protons, neutrons and electrons
49.- Element, atomic number, atomic mass, neutrons and electrons
50.- element, atomic number, atomic mass, protons and neutrons
51.- element, atomic number, protons, neutrons and electrons
