Explanation:
Moving from left to right across a period, the atomic radius decreases. The nucleus of the atom gains protons moving from left to right, increasing the positive charge of the nucleus and increasing the attractive force of the nucleus upon the electrons.
Answer:
Oxidation: the loss of electrons
Reduction: the gain of electrons
Oxidation number: the charge based on the number of electrons assigned to an atom as compared to the neutral atom
Explanation:
The oxidation number of a neutral atom is zero. When the atom is oxidized, it loses electrons (which have a negative charge), so the oxidation number goes up. When the atom is reduced, it gains electron (it gains negative charge), so the oxidation number goes down.
Which elements are you talking about?
