9. For the following questions, use a periodic table and your atomic calculations to find the unknown information about each isotope:

You have an neutrally charged isotope with a mass number of 99 and an atomic number of 43. How many protons?

99

43

56

142

Question

Payten Kane

14 November, 00:02

+2

Answers (1)

Know the Answer?

Krista Flynn · Answer 1

43 because the atomic number tells us how many protons there are in an atom.

9. For the following questions, use a periodic table and your atomic calculations to find the unknown information about each isotope:You have an neutrally charged isotope with a mass number of 99 and an atomic number of 43. How many protons?994356142