S Periodic Table Flashcards
What is the periodic table
It is an arrangement of elements in order of increasing atomic number
What are the vertical columns called
They’re called groups or families
How are elements arranged in vertical columns
Elements with similar properties are arranged under one another in vertical columns
What are the horizontal columns called
Periods
What do elements have in common that are in the same group
All elements in the same group of the periodic table have similar chemical properties
What are the following groups called
Group 1,2,7,8
Group 1 alkali metals
Group 2 alkaline Earth metals
group 7 halogens
group 8 noble (inert) gases
What does the word in inert mean
Unreactive
What are the elements in centre of the periodic table known as
Transition metals or the transition elements
What is an ion
an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
What is a molecule
It is a group of atoms joined together
it is the smallest particle of an element or compound that can exist independently
What is a covalent bond
Acovalent bondis a shared pair of electrons.Covalent bondingresults in the formation of molecules.
What is a bohr diagram
Bohr diagramsshow electrons orbiting the nucleus of an atom somewhat like planets orbit around the sun
