Practice problem
Mass Number — Definition & Overview

Columns 13-17 on the periodic table
Image Source: By LeVanHan (Own work) GFDL or CC BY-SA 3.0, via Wikimedia Commons
Which element(s) has 16 neutrons?
Practice problem

Columns 13-17 on the periodic table
Image Source: By LeVanHan (Own work) GFDL or CC BY-SA 3.0, via Wikimedia Commons
Which element(s) has 16 neutrons?