1  What is an element that reacted with many other elements? Which elements did it react with?

In the experiment that I found the element Sodium reacts with a lot of elements such as Oxygen, Fluorine, Sulfur and Chlorine.

2 What is an elements that did not react with any elements? Which elements did it not react with?

I found that Helium didn’t react to any element. In the lab and I had tried to react Helium with Iodine, Plutonium and Surfur, although it turned out later they didn’t pair up and have no reaction among Helium and other elements.

3 Why do you think some elements reacted with each other and others didn’t?

I think some elements reacted with each other and others didn’t because  some element has full shell and some element don’t. When the element doesn’t  have full shells come together they took each others particle to get a full shell. On the other hand, when the element has full shell, there is no need for it to take others’ particle, with resulted no reaction or paring up between them.

4 Do you think there may be a pattern to how the periodic table is arranged? Does it relate to how elements react with each other?

I think that the periodic table has its own pattern. It is organized by the things that the elements’ characteristics. And it can be also depended on if they’re metals, non-metals.  From my observation, elements are listed in numerical order by atomic number for example, Hydrogen that has element number of  1 is first element on the period table.