The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

Science lessons about matter for K-5 students and teachers that align with the Next Generation Science ... In this edition of Celebrating Chemistry, explore atoms and the periodic table, go on an ...

For example, lithium (Li), sodium (Na) and potassium (K ... all which can be found on the modern periodic table. The element germanium was discovered in 1886. Its properties were similar to ...

For example, lithium (Li), sodium (Na) and potassium (K ... all which can be found on the modern periodic table. The element germanium was discovered in 1886. Its properties were similar to ...

The periodic table captures a subtle pattern that ... is a reactive metal — just like sodium (element number 11) and potassium (number 19). A good way to think about it is to imagine running ...

However, he is remembered for his search for a pattern in inorganic chemistry. Just four years before Mendeleev announced his periodic table, Newlands noticed that there were similarities between ...

Nature Chemistry - The story of the last element to be discovered out of the first 92 catalogued in the periodic table is told by Eric Scerri, who reminds us that technetium can be found a little ...