Answer:
Copper (Cu)
Step-by-step explanation:
The periodic table gives information about each element.
Periodic Table
The periodic table gives specific information about different elements. In the middle of each square, there are one or two letters. These letters are known as the atomic symbol and are abbreviations for the element's name. Above the symbol, there is another number. This is the atomic number. Atomic numbers represent the number of protons in an element. Finally, under the symbol, there is another number. This number is the atomic mass. The atomic mass is the average mass of the element.
Atomic Number
Every element has a unique atomic number. So, the atomic number is used to identify elements. We are told that there are 29 protons in the element. This means that the atomic number is 29. By looking at a periodic table, we can see that the element copper (Cu) has an atomic number of 29.