Groups In The Periodic Table - AQA GCSE Chemistry

• Group 0 contains non-metal elements placed in the vertical column on the far right of the periodic table.
• The elements in group 0 are called the noble gases.
• The noble gases exist as single atoms.
• The noble gases show trends in their physical properties.
• The noble gases all have low boiling points.
• Helium, at the top of group 0, has the lowest boiling point of any element.
• This is because the attractive forces between the atoms become stronger as you go down group 0.
• Going down group 0, the atoms become larger so the intermolecular forces between the atoms become stronger and therefore more energy is needed to overcome these forces.
• Elements in the same group of the periodic table show trends in physical properties, such as boiling point.
• Elements in group 0 of the periodic table, named for their lack of chemical reactivity, are inert and do not take part in chemical reactions.
• A substance is unreactive or inert if it does not easily take part in chemical reactions and does not take part in chemical reactions.
• The elements in group 0 of the periodic table have stable arrangements of electrons, which means they have no tendency to lose, gain, or share electrons.
• The noble gases are unreactive because their atoms already have stable arrangements of electrons.
• Atoms of group 0 elements do not share electrons to form molecules because their atoms already have stable arrangements of electrons.
• Elements in the same group of the periodic table show trends in physical properties, such as boiling point.
• Elements in group 1 have the same number of electrons in their outer shell, so they are similar in their chemical properties.
• Group 0 elements have physical properties similar to those of water.
• Group 1 elements are chemically reactive with water.
• Group 7 elements have physical properties similar to those of water.
• Group 7 elements are chemically reactive with water.
• Group 1 elements are chemically reactive with oxygen and chlorine.
• Group 7 elements are chemically reactive with oxygen and chlorine.
• Group 1 elements are chemically reactive with sulphur.
• Group 7 elements are chemically reactive with sulphur.
• Group 1 elements are chemically reactive with nitrogen.
• Group 7 elements are chemically reactive with nitrogen.
• Group 1 elements are chemically reactive with phosphorus.
• Group 7 elements are chemically reactive with phosphorus.
• Group 1 elements are chemically reactive with selenium.
• Group 7 elements are chemically reactive with selenium.
• Group 1 elements are chemically reactive with tellurium.
• Group 7 elements are chemically reactive with tellurium.
• Group 1 elements are chemically reactive with bromine.
• Group 1 of the periodic table is represented by the alkali metals, which share similar physical properties.
• The melting points of group 1 alkali metals are relatively low.
• The melting point of francium will be around 23-27°C because francium is below caesium in the periodic table, so it should have a lower melting point as melting point decreases going from one element down to the next.
• Group 1 alkali metals have low densities.
• Examples of physical properties include state, melting point, conductivity, etc.
• The melting point decreases as you go down group 1.
• Francium, Fr, is below caesium in the periodic table.