Question

question 3
what nuclide has has 9 protons and 10 neutrons.
○ fluorine-19
○ potassium-39
○ fluorine-9
○ potassium-19
question 4
what nuclide has has 16 protons and 18 neutrons.
○ oxygen-16
○ sulfur-34
○ sulfur-16
○ oxygen-34

Explanation:

Question 3

Step1: Determine the atomic number and mass number

The atomic number (Z) is equal to the number of protons, so Z = 9. The mass number (A) is the sum of protons and neutrons, so A = 9 + 10 = 19.

Step2: Identify the element and nuclide

The element with atomic number 9 is fluorine. So the nuclide is fluorine - 19.

Step1: Determine the atomic number and mass number

The atomic number (Z) is equal to the number of protons, so Z = 16. The mass number (A) is the sum of protons and neutrons, so A = 16+18 = 34.

Step2: Identify the element and nuclide

The element with atomic number 16 is sulfur. So the nuclide is sulfur - 34.

Answer:

A. fluorine - 19

Question 4