Question

what is the atomic number of the atom? neon 10 protons, 10 electrons, 10 neutrons 20 10 30

Explanation:

Step1: Recall atomic number definition

Atomic number ($Z$) is equal to the number of protons in an atom's nucleus.

Step2: Identify protons in neon

From the given data, neon has 10 protons.

Step3: Determine atomic number

Since atomic number = number of protons, neon's atomic number is 10.

Answer:

B. 10 (assuming the blue option with 10 is the correct choice, formatted as per multiple - choice instruction: B. 10)