Cesium is the most reactive alkali metal due to its low ionization energy and large atomic radius, making it highly susceptible to losing an electron and forming positive ions.

Group 1 elements typically exhibit a +1 oxidation state because they have one valence electron, which they readily lose to achieve a stable octet configuration.

Alkali metals generally have low boiling points due to weak interatomic forces. High boiling point is not a characteristic property of alkali metals.

Calcium, in the form of calcium oxide (CaO), is a crucial component in the production of cement. It reacts with other ingredients to form calcium silicate minerals, which provide strength and durability to concrete.

Magnesium reacts with oxygen to form magnesium oxide (MgO), a white, ionic compound with a high melting point. It is commonly used as a refractory material and in the production of cement.

Beryllium has the highest ionization energy among Group 2 elements due to its small atomic radius and high nuclear charge. It requires more energy to remove an electron from a beryllium atom compared to other Group 2 elements.

Magnesium hydroxide, also known as milk of magnesia, is commonly used as a laxative due to its ability to neutralize stomach acid and draw water into the intestines, promoting bowel movements.

Sodium reacts with chlorine to form sodium chloride (NaCl), a white, crystalline compound commonly known as salt. It is an essential ingredient in our diet and is widely used in food preservation and various industrial processes.

Magnesium is a member of Group 2, not Group 1. Group 1 elements are alkali metals, while Group 2 elements are alkaline earth metals.

Calcium reacts with fluorine to form calcium fluoride (CaF2), a white, crystalline compound that is commonly used as a flux in metallurgy and in the production of glass and ceramics.

Cesium is the only Group 1 element that is liquid at room temperature. It has a low melting point of 28.5 °C and a low boiling point of 678 °C.

Group 2 elements typically exhibit a +2 oxidation state because they have two valence electrons, which they readily lose to achieve a stable octet configuration.

Calcium carbonate, commonly known as chalk or limestone, is widely used as an antacid to neutralize stomach acid and relieve heartburn and indigestion.

Strontium reacts with oxygen to form strontium oxide (SrO), a white, crystalline compound that is used in the production of fireworks, ceramics, and electronic devices.

Sodium is a member of Group 1, not Group 2. Group 2 elements are alkaline earth metals, while Group 1 elements are alkali metals.