Question

30
Z
Zinc
65.39

Atomic number
atomic mass
# of protons
# of neutrons
# of electrons

Answer 1

For the element Zinc (Zn), with the atomic number 30 and atomic mass approximately 65.39, we can derive the other properties as follows:

- **Atomic Number:** 30 (This indicates the number of protons.)
- **Atomic Mass:** Approximately 65.39
- **Number of Protons:** 30 (same as the atomic number)
- **Number of Electrons:** 30 (in a neutral atom, the number of electrons equals the number of protons)
- **Number of Neutrons:** To calculate the number of neutrons, we can use the formula:

\[
\text{Number of Neutrons} = \text{Atomic Mass} - \text{Number of Protons}
\]

The atomic mass of Zinc (rounded to the nearest whole number) is approximately 65. Therefore:

\[
\text{Number of Neutrons} = 65 - 30 = 35
\]

So, summarizing:
- Atomic Number: 30
- Atomic Mass: 65.39
- Number of Protons: 30
- Number of Neutrons: 35
- Number of Electrons: 30