Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
Promoted
a neutral atom has a mass number of 80 and has 45 neutrons what is complete symbol?
2 Answers
Relevance
- Old Science GuyLv 79 years agoFavorite Answer
that would be Br-80 (bromine-80)
or in nuclear equations
80/35 Br
- 9 years ago
If its mass is 80 and it contains 45 neutrons, simply subtract the two numbers to find the atomic number.
80 - 45 = 35
Knowing that the atomic number is 35, look at a periodic table of elements to find which element it is. In this case, it is the element Bromine, or Br.
Still have questions? Get your answers by asking now.