A vertical column the periodic table is known as a group. Group 1 contains six very reactive metals. You might handle lithium and possibly sodium in the laboratory . The other metals in the group are too reactive to handle in a school laboratory. Introduction A vertical column the periodic table is known as a group. Group 1 contains six very ...
1.23 Family resemblances Hydrogen is often listed above group 1 the Alkali metals. Although like group 1 atoms, hydrogen atoms have a single electron in their outer shell, Hydrogen is not a metal. Students should: 1.23 understand why elements in the same group of the Periodic Table have similarchemical properties 1.24 und...
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.
1.19 Deducing electron configurations Students should: 1.19 understand how to deduce the electronic configurations of the first 20 elements fromtheir positions in the Periodic Table A carbon atom has 6 protons and therefore 6 electrons. The electrons are arranged in two shells; 2 electrons in the first shell and 4 electrons in...
1.20 - 1.22 Activity 2. Periodic variations Students should: 1.20 understand how to use electrical conductivity and the acid-base character of oxides to classify elements as metals or non-metals 1.21 identify an element as a metal or a non-metal according to its position in the Periodic Table 1.22 understand how the electronic configura...
