Answers are:
1) Each sodium atom loses one electron.
2) The charge of the chloride ion in NaCl is -1.
Oxidation reaction: Na⁰ → Na⁺¹ + e⁻ /×2; 2Na⁰ → 2Na⁺¹ + 2e⁻.
Reduction reaction: Cl₂⁰ + 2e⁻ → 2Cl⁻.
Sodium change lose electrons and change oxidation number from 0 to +1 (oxidation). Chlorine change oxidation number from 0 to -1 (reduction reaction).
No, because a child under the age of 16 does not have the right to engage in such relationships and it's punishable by law if the relationship becomes intimate.
It takes more energy to breakdown the bonds