Answer:
true trust ong gotta be true fff
Atomic mass is the decimal number that is on the periodic table...
Boron's atomic mass is 10.81
There are 30 protons and 39 neutrons in the nucleus.
This must me the isotope of an element with an atomic mass close to 69 u.
The only candidates are Zn and Ga.
Zn has a zinc-69 isotope with mass 68.926 u.
Ga has a gallium -69 isotope with mass 68.925 u.
The isotope is probably
.
It has 30 protons and 39 neutrons.
Ionic reaction when a metal and non metal are together a molecule is when a metal abs metal react hope this helps