Question

which model correctly represents the electron dot diagram of antimony? .åt· .åt: .sb· .sb·

Explanation:

Step1: Identify antimony's symbol

Antimony's chemical symbol is Sb (not At, which is astatine). So eliminate first two options.

Step2: Find valence electrons of Sb

Antimony is in group 15, so valence electrons = 5. Count dots in remaining options: third has 5 dots, fourth has 4.

Answer:

The third option (·Sb· with 5 dots)