<span>29 protons and 27 electrons.
Since the element is copper, that automatically means that you have 29 protons. Any other number would be an element other than copper. The 2+ indicates that the ion has a positive charge of 2. So it is missing 2 electrons. Since a neutral atom would have 29 electrons and you're missing 2, the number of electrons will be 29 - 2 = 27
So the answer is 29 protons and 27 electrons.</span>
Answer:
yo dude on my questin can u answer my coment
Explanation:
What is the DNA strand? You have not named it.
Answer:
wow, that sounds very painful I wonder why she did it...?
Explanation:
KMnO₄ :
K = + 1
Mn = + 7
O = - 2
<span>What is the oxidation number of manganese is + 7
hope this helps!</span>