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

Question

|---------------|---------------|---------|----------|-----------|-------------|
| __ | __ | 31 | 37 | __ | __ |

Answer 1

To fill in the missing information for the element with 31 protons and 37 neutrons, we can determine the atomic symbol, atomic number, and atomic mass.

1. Atomic Number: This is the same as the number of protons, which is 31.
2. Element: The element with atomic number 31 is Gallium (Ga).
3. Electrons: In a neutral atom, the number of electrons is equal to the number of protons, so it has 31 electrons.
4. Atomic mass: The atomic mass can be calculated as the sum of protons and neutrons.
   • Atomic mass = Protons + Neutrons = 31 + 37 = 68.

Now, we can fill in the table:

| Atomic symbol | Atomic Number | Protons | Neutrons | Electrons | Atomic mass | |---------------|---------------|---------|----------|-----------|-------------| | Ga | 31 | 31 | 37 | 31 | 68 |