| Name of Element | Element Symbol | Mass Number | Atomic Number | Protons | Neutrons | Electrons |

Question

|------------------|----------------|-------------|---------------|---------|----------|-----------|
| ___ | Si | __ | __ | __ | __ | 14 |

Answer 1

To fill in the blanks for the element with the symbol "Si," which stands for Silicon, we need the following information:

• Element Name: Silicon
• Mass Number: The most common isotope of silicon has a mass number of 28.
• Atomic Number: Silicon has an atomic number of 14.
• Protons: The number of protons is equal to the atomic number, which is 14.
• Neutrons: To find the number of neutrons, subtract the atomic number from the mass number: 28 - 14 = 14 neutrons.
• Electrons: For a neutral atom, the number of electrons is equal to the number of protons, which is also 14.

So, the completed table would look like this:

| Name of Element | Element Symbol | Mass Number | Atomic Number | Protons | Neutrons | Electrons | |------------------|----------------|-------------|---------------|---------|----------|-----------| | Silicon | Si | 28 | 14 | 14 | 14 | 14 |