Q&A for How to Memorise the Periodic Table

That is because organic chemistry mainly deals with carbon and its compounds. Carbon shows catenation and can form coordinate or covalent bonds very easily. This results in a huge number of compounds of Carbons or more specifically organic compounds. These compounds outnumber inorganic compounds by a huge difference, so a separate branch for their specific study is created.

Gold is unreactive to just about anything you throw at it. Unlike metals like copper and iron, it does not react to oxygen. It doesn't react with water, and acids will not attack it either. In fact, the only things that will get gold to react are aqua regia and liquid mercury. Because gold is so unreactive, it's a noble metal.

Instead of trying to memorize them all at once, try to break them down into groups. Once you have memorized one group, add the next group. Take breaks throughout the evening. Even though the test is the next day, by cramming too much, you may still end up forgetting some elements. Writing out the table a few times can also be useful the night before.

Check YouTube for a song by AsapSCIENCE called "The New Periodic Table."

The electrons in the outermost shell represent the valency. You must know the number of electrons entering every shell. An atom always tries to stay stable, meaning it requires a minimum of 8 electrons in its outermost shell, so the atom sometime gives, loses, or gains electrons. The number of electrons lost/gained is its valency. If the number of electrons in the outermost shell is one, it loses that one electron, hence its valency is one. If there are six electrons, it needs two electrons, so that's what it gains; as a result, its valency is 2.

Listen to the Periodic Table Song by ASAP Science over and over again.

Think of people's names and what house number they live in. If not then try to relate it to something you can remember or use a lot.

Just write out the symbols for the different elements. Read through and test yourself to see how many you can remember. Use flashcards to help memorize them.

Because gold is a very unreactive metal, known as a noble metal.

All elements have electrons. The number of electrons correlates to the atomic number (e.g., potassium has 19 electrons, the same as its atomic number).

The periodic table sorts individual elements only. Solutions can be made by combining these elements.

There are 118 elements in the Periodic Table.

Fortunately, you don't have to. It's a complicated process involving atomic isotopes. The periodic table gives the mass number of each element. It's the decimal number near the bottom-right of each square. In the article above, it's referred to as "atomic weight." It is approximately equal to the number of protons and neutrons in the atom's nucleus (plus a tiny weight representing the electrons).