Question

this is a bohr model of an atom or ion.
select the nuclear notation that represents this atom or ion.
refer to a periodic table.

Explanation:

Step1: Count Protons (Atomic Number, \( Z \))

Yellow circles (protons) in the nucleus: \( 7 \). So \( Z = 7 \), corresponding to nitrogen (\( \text{N} \)) (since atomic number 7 is nitrogen).

Step2: Calculate Mass Number (\( A \))

Blue circles (neutrons) in the nucleus: Count neutrons. Mass number \( A = \text{protons} + \text{neutrons} \). From options, \( A = 14 \), so neutrons \( = 14 - 7 = 7 \) (consistent with the model).

Step3: Determine Charge (Electron Count)

Blue dots (electrons) in shells: Inner shell (2) + outer shell (8) \( = 10 \) electrons. Charge \( = \text{protons} - \text{electrons} = 7 - 10 = -3 \) (so \( \text{N}^{3-} \)).

Answer:

\( \boldsymbol{^{14}_{7}\text{N}^{3-}} \)