Hydrogen - The Lightest Element Quiz

Answer: Proton

Protium is the most common isotope with an abundance of 99.98%. It contains a single proton with no neutron. Proton is the cation (positive ion) of hydrogen, less the electron. Its formula is H+.

Meanwhile, deuterium contains 1 neutron and 1 proton. On the other hand, tritium has 2 neutrons and 1 electron. You may have learned from the movie "Spiderman 2" that it is a very rare compound. But this is not correct.

In the movie, Dr. Octavius said that there was only 25 pounds of tritium in the world. However, this is not the case because Antarctica is rich in tritium. Tritium is used widely in life science research.

Answer: s block

The electronic configuration of hydrogen is 1s^1. All transition metals are classified as d block elements. All lanthanides and actinides are f block elements.

Answer: Hydrogen is an alkali metal.

Even though hydrogen is placed on the top of Group 1 in the periodic table, it is not considered an alkali metal. Group 1 elements include lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr).

Hydrogen makes up 75% of the mass of the universe. Hydrogen's 3 isotopes are protium, deuterium and tritium.

The word hydrogen is derived from Ancient Greek, where "hydro" means water, and "genes" means "forming".

Answer: True

Examples of strong acids are such as hydrochloric acid, (HCl), sulfuric acid (H2SO4) and perchloric acid (HClO4).

For example, the reaction between zinc (Zn) and hydrochloric acid is: Zn + 2HCl ---> ZnCl2 + H2

Answer: Hydrogenation

Besides platinum, palladium, rhodium and ruthenium are also used as catalysts in hydrogenation.

Dehydrogenation is the reverse of hydrogenation, where hydrogen is removed or eliminated from a compound.

Answer: 2 : 1

The molecular formula for water is H2O, so the ratio of the resulting hydrogen gas to oxygen gas is 2:1.

Electrolysis is seldom used to produce hydrogen gas commercially because it is much more expensive compared to its production from natural gas.

Answer: C6H6 (Benzene)

Hydrogen bonds are very strong and very hard to break. For instance, hydrogen bonds are formed among water molecules, resulting in the high boiling point of water.

Answer: Schrödinger equation

The Schrödinger equation is a very complex mathematical equation that describes the distribution of the electron of a hydrogen atom in its orbital. It can be solved only by using supercomputers and the calculation will take several days!

Answer: Hydrogen gas is highly flammable.

Hindenburg airships (zeppelins) can catch fire easily due to the hydrogen gas that is used to inflate them.

Answer: True

A typical hydrogen atom consists of a proton and an electron. On the contrary, an antihydrogen is made up of a positron and an antiproton.

Antihydrogen is the antimatter for hydrogen. When both of them collide, annihilation occurs, which results in the release of a great amount of energy.