Question

1. what happens to silicon when a proton is added to the nucleus? a it becom b it becomes phosphorus. c it becomes aluminum d it becomes negatively charged

Explanation:

• The atomic number of an element is determined by the number of protons in its nucleus.
• Silicon (Si) has an atomic number of 14.
• When a proton is added, the new atomic number is \(14 + 1=15\).
• Phosphorus (P) has an atomic number of 15.

Answer:

B. It becomes Phosphorus.