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 ...

The modern periodic table is based closely on the ideas he ... For example, lithium (Li), sodium (Na) and potassium (K) all have the same kind of reaction with water. The group of elements below ...

They include lithium, sodium and potassium, and are placed in the first vertical column on the left of the periodic table. All the Group 1 elements are very reactive, and all react with water to ...

These are almost one-quarter of the periodic table and are mainly found in the ... chlorine, potassium, sodium, calcium and magnesium. How polio affects the body and what WHO is doing to eliminate ...