In the periodic table what are the 4 most reactive metals in the periodic table systematically and their use in in the daily life?

The four most reactive metals in the periodic table are:

1. Lithium (Li) - Lithium is used in rechargeable lithium-ion batteries, which are commonly found in electronic devices such as smartphones, laptops, and electric vehicles.

2. Sodium (Na) - Sodium is used in various industries, including the production of soap, glass, and paper. It is also a key component in table salt (sodium chloride).

3. Potassium (K) - Potassium is essential for human health and is found in many foods, such as bananas, potatoes, and leafy greens. It is also used in fertilizers and in the production of certain chemicals.

4. Calcium (Ca) - Calcium is important for bone health and is found in dairy products, leafy greens, and fortified foods. It is also used in the production of cement, as a deoxidizer in steel production, and in the manufacturing of paper and textiles.

4 Most Reactive Metals in the Periodic Table

1. Francium (Fr)
2. Cesium (Cs)
3. Rubidium (Rb)
4. Potassium (K)

Uses in Daily Life:

Francium:
- Not used in daily life due to its extreme reactivity and scarcity.

Cesium:
- Atomic clocks: Used in highly precise timekeeping devices.
- Ion engines: Provides propulsion for spacecraft.
- Biomedical imaging: Used in Positron Emission Tomography (PET) scans.

Rubidium:
- Atomic clocks: Similar to cesium, used for accurate timekeeping.
- Laser systems: Used in telecommunications and GPS applications.

Potassium:
- Fertilizer: A crucial nutrient for plant growth.
- Electrolytes: Regulates fluid balance and nerve function in the body.
- Food preservation: Used as a preservative in some foods to inhibit bacterial growth.
- Batteries: Used in high-energy density batteries, such as lithium-ion batteries for electronic devices.