How many protons are in an atom represented by #""_88^220Ra#?

1 Answer
anor277
May 1, 2016

If it is a radium isotope, then there are #88# #"nucular"# protons.

Explanation:

The number of protons determines elemental identity: for radium #Z=88#. We don't even need the subscripted symbol to determine this.

A more searching question would have been to ask how many NEUTRONS this isotope contains. Well, how many?

Related questions
See all questions in Mass Number
Impact of this question
7313 views around the world
You can reuse this answer
Creative Commons License