0 Comments
Answer:
29 + 34 = 63
Step-by-step explanation:
copper has an atomic number of 29 and a mass number of 63. The atomic number is the number of protons in the nucleus and the mass number is the number of protons and neutrons in the nucleus. This means that the copper atom has 29 protons and 34 neutrons in it's nucleus
29
Atomic Number=No of protons
Mass number = No of protons plus the number of neutrons