I am pretty sure u have pictures and this one should be the one that erika should make
Answer:
Here boron-11 means the name of the element is boron and the mass number is 11
Explanation:
Answer:
I think B
Explanation:
There are more negative ions than positive ions
Https://chem.libretexts.org/Core/Analytical_Chemistry/Quantifying_Nature/Units_of_Measure/SI_Units
Look for it here
Single Replacement and Double Replacement reactions
