To fill in the missing information for the element with the symbol "Tc" (which is Technetium), we can use the provided mass number, atomic number, and the known properties of Technetium.
The information given already includes:
- Element Symbol: Tc
- Mass Number: 98
- Protons: 43 (which is also the atomic number)
Now, we can calculate the number of neutrons and electrons:
-
Neutrons: Neutrons can be calculated using the formula:
\[ \text{Neutrons} = \text{Mass Number} - \text{Protons} \]
For Technetium: \[ \text{Neutrons} = 98 - 43 = 55 \]
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Electrons: In a neutral atom, the number of electrons is equal to the number of protons. Therefore: \[ \text{Electrons} = 43 \]
Now, we can fill in the missing parts:
| Name of Element | Element Symbol | Mass Number | Atomic Number | Protons | Neutrons | Electrons | |------------------|----------------|-------------|---------------|---------|----------|-----------| | Technetium | Tc | 98 | 43 | 43 | 55 | 43 |