The atomic number of calcium is 20 which means it has 20 protons and as an atom (not an ion) it also has 20 electrons. These are in four energy levels (1 though 4) .
Answer 1 and 2 are true for alkaline solutions.
Acids have a pH below 7. (this is the answer)
Both acids and bases are electrolytes as they have free moving ions.
Feel free to comment if you want further explanation.
Answer:
Eh, ni siquiera estoy haciendo química todavía, así que no puedo ayudarte amigo, también se supone que debo responder algunas preguntas aquí, así que...
Explanation:
No, I totally didn't use Google Translate for this. :)
