Answer:
ionization energy decreases from top to bottom in groups, and increases from left to right across a period. So technically, the noble games have the largest ionization energy.
Explanation:
Covalent.
Ionic Bond = Two atoms at which one of them are positive, one of them are negative. Whoever is more reactive will steal the electron and keep it, and they will form a bond. Most likely will be a metal ion (+Ve) and a non-metal ion (-ve).
Covalent = Non-metal bond to non-metal. They share electrons.
Although Hydrogen is positively charged, they are "technically" sharing electron, hence is covalent
