Ask Question
20 April, 03:34

An Atom's mass number is 210 and its atomic number is 85. How many neutrons does the atom have?

a. 85

b. 125

c. 210

d. 295

+3
Answers (2)
  1. 20 April, 05:12
    0
    B. 125 no of electrons=atomic no no of neutrons+no of electrons=mass no no of neutrons=mass no-no of electrons no of neutrons=210-85 no of neutrons = 125
  2. 20 April, 06:08
    0
    B. 125

    neutrons = mass number - atomic number

    therefore, 210-85 = 125
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “An Atom's mass number is 210 and its atomic number is 85. How many neutrons does the atom have? a. 85 b. 125 c. 210 d. 295 ...” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers