What is the total net charge of an atom that contains 13 protons and 10 electrons? * *0
*+3
*-3
*+13
*-13

It should be *+3

Explanation:

Al3+ indicates an ion of aluminum having a charge of + 3. I.e., since an aluminum atom normally has 13 protons and 13 electrons, this ion has 10 electrons (-10 charge) and 13 protons (+ 13 charge) giving it a charge of + 3 (-10 + 13 = +3).

The other i.d.i.ot answered unhelpfully

if you answer my question i will answer yours

the independent variable, or the one that is intentionally manipulated is the speed.