Niba of SciShow explained how many Periodic Table elements actually exist in the human body and how these elements work to ...

Electronegativity, an essential characteristic of all elements in the periodic table, measures an atom's ability to attract electrons towards itself within a chemical bond. This vital theoretical ...

In your answer, use ideas about electronic structure to explain differences in chemical properties. [6 marks] Group 1 of the periodic table contains the alkali metals lithium, sodium and potassium.