Question

63\atop{29}}cu

of protons?

of electrons?

atomic number
atomic mass

of neutrons?

Explanation:

Step1: Determine number of protons

The atomic number (bottom left) is 29. The number of protons in an atom is equal to its atomic number. So, number of protons = 29.

Step2: Determine number of electrons

In a neutral atom, the number of electrons is equal to the number of protons. Since this is a neutral \( \ce{Cu} \) atom, number of electrons = 29.

Step3: Identify atomic number

The atomic number is the bottom left number, which is 29.

Step4: Identify atomic mass

The atomic mass is the top left number (mass number), which is 63 (we use the mass number here as the atomic mass approximation for this isotope).

Step5: Calculate number of neutrons

Number of neutrons = mass number - atomic number. So, \( 63 - 29 = 34 \).

Answer:

• # of protons: 29
• # of electrons: 29
• Atomic Number: 29
• Atomic Mass: 63
• # of neutrons: 34