Register
What is the atomic mass of an atom that contains 28 protons, 28 electrons, and 30 neutrons? 86 28 58 56
48.5k views
9 votes
What is the atomic mass of an atom that contains 28 protons, 28 electrons, and 30 neutrons?

86
28
58
56

User JoshD
by
3.5k points

1 Answer

12 votes
you add (only) the protons and neutrons, so the answer here is 58
User Oleg Afanasyev
by
3.5k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

3.5m questions

4.4m answers

Other Questions

What is the variable for this number 22.4L?
Which of the following aqueous solutions are good buffer systems? . 0.29 M perchloric acid + 0.15 M potassium perchlorate 0.16 M potassium acetate + 0.26 M acetic acid 0.18 M hydrofluoric acid + 0.12 M
1. If temperature is increased, the number of collisions per second do what
TRUE or FALSE: Volcanoes help warm the planet by releasing CO2 (carbon dioxide)
Which of the following is NOT a benefit of wildfires? * O Insects moving in after a fire provide more food for birds. O Wildfires help undergrowth in a forest grow denser. O Fires can clean out diseased
Link Copied!