What is the mass number of an atom containing 35 protons and 45 neutrons? How many total electrons would that neutral atom contain
What is the element?
Will this element gain or lose electrons?
How many total electrons would an ion of that element have?
What is the charge on that ion (ex. +1,12 2. etc.)?
Is this ion an anion or cation?
What other element has the same number of electrons as the ion you have identified?
No

Explanation:

1. Weight = 35 P and 45 N = 80

2. Atom:  35P = 35 electrons

3. Bromine

4. It's a non metal. It's in column 17. It will gain 1 electron (normally).

5. Ion: 35 protons, 36 electrons

6. Charge: - 1 usually, but there are exceptions

7. Anions go to the Anode. The anode attracts minus charged elements.

8. In an uncharged state, element 36 would be next. That would be  Krypton which is always uncharged. It is a noble gas.

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where's the diagram?