1. Hydrogen has an extremely low electronegativity.
2. Hydrogen is able to accept or donate electrons, so it is the most versatile atom in the periodic table.
3. Hydrogen can be considered either a metal of nonmetal.
4. The boiling points of NH3, H20, and HF are abnormally high compared with the rest of the hyrides in their respective periods.
2007-10-20 23:55:55 · 2 answers · asked by xxxladyxxx 1 in Science & Mathematics ➔ Chemistry
4 is correct since the hydrogen bound exists there is a great attraction between molecules and they remin near one another and itis difficult to boil since boiling means separating the molecules
2007-10-21 02:10:08 · answer #1 · answered by maussy 7 · 0⤊ 0⤋
Answer 4.
Answer 1 is not true: It has 2.2 on the Pauling Scale.
Answer 2 is not ture: It covalently bonds and does not ionically bond.
Answer 3: So what?!
Answer 4 is the correct answer: Those molecules have inter-molecular forces (H-bonds) which are strong and need to be broken before boiling.
2007-10-21 00:08:10 · answer #2 · answered by blastedsand 2 · 0⤊ 1⤋