Question

element numbers ws
use your element number notes to answer the questions.
1 multiple choice 10 points
fluorine (f) has an atomic mass of 19 and an atomic number of 9. which does this information reveal about most fluorine atoms?
they contain more neutrons than protons
they contain the same number of neutrons as electrons
they contain more protons than neutrons

Explanation:

Step1: Find protons and electrons

Atomic number = protons = electrons = 9

Step2: Calculate neutrons

Neutrons = Atomic mass - Atomic number = 19 - 9 = 10

Step3: Compare particles

Neutrons (10) > protons (9); neutrons ≠ electrons (9); protons < neutrons

Answer:

A. they contain more neutrons than protons