1.23 Family resemblances Hydrogen is often listed above group 1 the Alkali metals. Although like group 1 atoms, hydrogen atoms have a ...
Classic reactions of the alkali metals with water
The elements in the periodic table are organised in order of increasing atomic number.
The elements in the periodic table are organised in order of increasing atomic number.
Carbon atoms have an electron configuration of 2,4
1.19 Deducing electron configurations Students should: 1.19 understand how to deduce the electronic configurations of the first 20 element...
A shortened form of the periodic table showing the first 18 elements and their electron configuration.
1.20 - 1.22 Activity 2. Periodic variations Students should: 1.20 understand how to use electrical conductivity and the acid-base characte...