I don’t know the answer question but I don’t know what about the answer question but please answer question question mark on the answer question question mark on the answer question
If the element have 39 protons, that means that his atomic number is 39, being Yttrium the element. And, the number of protons is the same of the number of electrons, so, 39 electrons.
The correct answer are
identify the positive ion and charge
balance the charges
identify the negative ion and charge
Erm i’m afraid we need the list
