When the alkali metals react with the different halogens (Group 7 of the periodic table), the group of compounds formed are known as the alkali metals halides. Due to the fact that there are a ...

Alkali metals: Alkali metals have a single electron in their outermost energy level, so they bond readily with other elements. They are typically soft enough to slice with a knife and are good ...

When a small piece of sodium is placed in a petri dish with water and phenolphthalein, the sodium becomes a molten ball and darts around the dish, leaving a pink trail. The reactions of potassium, ...

Lithium is an alkali metal in group IA of the periodic table with atomic number 3, an atomic weight of 6.939, and a density of 0.53 Mg/m 3. Its melting point is 180.5 C, and it boils at 1330 C. The ...

Sodium is an alkali metal in group IA of the periodic table with atomic number 11, an atomic weight of 22.99, and a density of 0.97 Mg/m 3. Its melting point is 97.8 C, and it boils at 892 C. The ...

Key Features of the Modern Periodic Table: Arranged by Atomic Number: Elements are arranged in order of increasing atomic ...