Definitions by Wilfredlam0418

Oxygen 

The eighth element on the periodic table. It is the second most common gas in the air. Without it, humans will die due to a lack of oxygen.

Basic Information:
| Name: Oxygen
| Symbol: O
| Number: 8
| State at STP: Gas
| Melting / Freezing Point: 54 K
| Boiling Point: 90 K

Oxygen is colorless as a gas, but it has a pale blue color when it is a solid or a liquid.

Oxygen by Wilfredlam0418 February 14, 2025

Nitrogen 

The seventh element on the periodic table. Due to its low boiling point, its liquid form is commonly used in the freezing of objects in chemistry. It is also the most common gas in the air.

Basic Information:
| Name: Nitrogen
| Symbol: N
| Number: 7
| State at STP: Gas
| Melting / Freezing Point: 63 K
| Boiling Point: 77 K

The empty space found in chip bags is nitrogen gas, to keep the crispiness of the chips inside.

Nitrogen by Wilfredlam0418 February 11, 2025

Carbon 

The sixth element on the periodic table. The pure form is most commonly found in the form of diamonds, while carbon dioxide is the most common compound of carbon.

Basic Information:
| Name: Carbon
| Symbol: C
| Number: 6
| State at STP: Solid
| Sublimation Point: 3915 K

Graphite is an allotrope of carbon that can be found in pencils.

Carbon by Wilfredlam0418 February 11, 2025

Boron 

The fifth element on the periodic table. It is a brittle metalloid in a crystalline form and a brown powder in an amorphous form.

Basic Information:
| Name: Boron
| Symbol: B
| Number: 5
| State at STP: Solid
| Melting / Freezing Point: 2349 K
| Boiling Point: 4200 K

Boric acid is a compound that contains boron.

Boron by Wilfredlam0418 February 11, 2025

Beryllium 

The fourth element on the periodic table. Beryllium is found in a green gemstone called an emerald, a variety of the mineral beryl.

Basic Information:
| Name: Beryllium
| Symbol: Be
| Number: 4
| State at STP: Solid
| Melting / Freezing Point: 1560 K
| Boiling Point: 2742 K

Beryllium is a hard, yet brittle alkaline earth metal, the elements found in the second group.

Beryllium by Wilfredlam0418 February 8, 2025

Lithium 

The third element on the periodic table. Lithium is commonly found in lithium metal batteries and lithium-ion batteries. It is also the first alkali metal, and the first metal in general.

Basic Information:
| Name: Lithium
| Symbol: Li
| Number: 3
| State at STP: Solid
| Melting / Freezing Point: 454 K
| Boiling Point: 1617 K

Some button cells (also known as watch batteries or coin batteries) are made of lithium.

Lithium by Wilfredlam0418 February 8, 2025

Helium

The second element on the periodic table. It is a noble gas, and therefore, doesn't react to many other elements. It is also the only noble gas in the s-block.

Basic Information:
| Name: Helium
| Symbol: He
| Number: 2
| State at STP: Gas
| Boiling Point: 4 K

Helium cannot become a solid unless there is a lot of pressure.

Helium by Wilfredlam0418 December 20, 2024