Periodic Table and Chemical Bonding

Front

How are elements arranged in the periodic table?

Back

Elements are arranged in the periodic table in order of increasing atomic number.

Front

What does the periodic table allow chemists to do?

Back

The periodic table allows chemists to make accurate predictions of physical properties and chemical behaviour for any element, based on its position.

Front

What is a group in the periodic table?

Back

Groups: vertical columns within the table contain elements with similar chemical properties resulting from a common number of electrons in the outer shell.

Front

What are periods in the periodic table?

Back

Periods: rows of elements arranged with increasing atomic number, demonstrating an increasing number of outer electrons and a move from metallic to non-metallic characteristics.

Front

Where are the Alkali metals found and what are their chemical properties?

Back

Group 1 metals, very reactive.

Front

Where are the Halogens found and what are their chemical properties?

Back

Group 7 non-metals, very reactive.

Front

Where are the Noble Gases found and what are their chemical properties?

Back

Group 8 gases, very unreactive.

Front

List the metallic elements and state their intramolecular bonding and structure.

Back

Intramolecular bonding: atoms are held together by metallic bonding. Structure: lattice. Elements: Lithium, Beryllium, Sodium, Magnesium, Aluminium, Potassium, Calcium.

Front

List the covalent molecular elements and state their intramolecular bonding and structure.

Back

Intramolecular bonding: atoms are held together in small groups by strong covalent bonds. Structure: discrete molecular. Elements: Hydrogen (H2), Nitrogen (N2), Oxygen (O2), Fluorine (F2), Chlorine (Cl2), Phosphorus (P4), Sulfur (S8), Fullerenes (eg C60).

Front

List the covalent network elements and state their intramolecular bonding and structure.

Back

Intramolecular bonding: large networks of atoms are held together by strong covalent bonds. Structure: network. Elements: Boron, Carbon (diamond and graphite), Silicon.