| Atomic symbol | Atomic Number | Protons | Neutrons | Electrons | Atomic mass |

Question

|---------------|---------------|---------|----------|-----------|-------------|
| __| __ | __ | 102 | 70 | __ |

Answer 1

To fill in the missing information for the element with 102 neutrons and 70 protons, we start by identifying the atomic number and determining the element's name and symbols.

Given:

• Protons = 70
• Neutrons = 102

1. Atomic Number: The atomic number (number of protons) is 70. This corresponds to the element Zinc (Zn).
2. Elements with 70 Protons: The element with 70 protons is actually Zinc, and it has an atomic number of 70.
3. Electrons: In a neutral atom, the number of electrons equals the number of protons. Therefore, there are 70 electrons as well.
4. Atomic Mass: The atomic mass can be approximated as the sum of the protons and neutrons. In this case: \[ \text{Atomic mass} \approx \text{Protons} + \text{Neutrons} = 70 + 102 = 172 \]

So, using the above analysis, we can fill in the table:

| Atomic symbol | Atomic Number | Protons | Neutrons | Electrons | Atomic mass | |---------------|---------------|---------|----------|-----------|-------------| | Zn | 70 | 70 | 102 | 70 | 172 |

Please double-check the atomic properties as this calculation assumes a neutral atom. Additionally, the element with 70 protons is actually Zinc (Zn) but possesses fewer neutrons. If your inquiry is centered around isotopes or specific chemical elements, kindly specify!