Topic 3.1: Periodic Table Flashcards
Blocks in which the periodic table is divided according to the last orbital of an element
a) s-block
b) p-block
c) d-block
d) f-block
s-block
Group 1
Group 2 and He
p-block
Group 13 - 18 (excluding He)
d-block
Groups 3 - 12 (including La and Ac)
f-block
Elements 58 - 71
Elements 90 - 103
How are elements arranged in the periodic table?
Increasing atomic number
What is a group?
A vertical column of elements with similar chemical properties (18)
Relationship between elements in the same group based on their electronic configuration
Group number is the same as the number of valence electrons (outer electrons)
What is a period?
A horizontal row of elements (7)
Relationship between elements in the same period based on their electronic configuration
Period number is the same as the number of occupied main energy levels in the atom
What are the general characteristics of metals? (5)
a) Good conductors of heat and electricity
b) Malleable (capable of being hammered into thin sheets)
c) Ductile (capable of being drawn into wires)
d) Lustre (shiny)
e) Lose electrons in chemical reactions
What are the general characteristics of non-metals? (2)
a) Poor conductors of heat and electricity
b) Gain electrons in chemical reactions
What are the general characteristics of metalloids? (2)
a) Both metallic and non-metallic properties
b) Semiconductors
What elements conform metalloids? (6)
B / Si / Ge / As / Sb / Te
What is the name of Group 1 elements?
Alkali metals
