Chemistry

Argon is known as the 'Stranger Gas' because it is chemically inert and was discovered as a new, 'strange' gas in the atmosphere that did not react with other elements. The other gases listed do not have this nickname.

The modern Periodic Table consists of 7 rows called periods and 18 columns called groups, which organize elements based on their atomic number and properties.

Bromine is the only non-metal element that remains liquid at room temperature (around 25°C). Phosphorus is solid, chlorine is a gas, and helium is a gas at room temperature.

In the periodic table, columns are called groups. Each group contains elements with similar chemical properties. Periods refer to rows, not columns.

Coke is produced by heating coal in the absence of air at around 700 °C to drive off volatile components, leaving a carbon-rich solid. Temperatures like 1300 °C or higher are not typical for coke production.

In the periodic table, rows are called periods. Each period corresponds to elements with the same number of electron shells. Columns are called groups.

Mercury is the only metallic element that is liquid at room temperature (around 25°C). Zinc, Nickel, and Lead are all solid metals at room temperature.

The horizontal rows in the periodic table are called periods. Each period represents elements with the same number of electron shells.

Copper is refined by the process of electrolysis, where impure copper acts as the anode and pure copper is deposited at the cathode, resulting in high purity copper.

Magnalium is an alloy composed primarily of aluminium and magnesium, which improves strength and corrosion resistance compared to pure aluminium.