Periodic Table Flashcards
Revision
Who is Dimitri Mendeleev?
A Russian chemist who in 1869 published a periodic table containing gaps
What is the periodic table?
The table that organizes all 118 elements based on atomic structure?
How many elements are there?
118
What is a metal?
An element that loses electrons to form a positively charge ion
What is a non-metal?
An element that gains electrons to form a negatively charge ion
What side of the periodic table are the metals on?
Left
Are majority of the elements on the periodic table metal or non-metal?
Metal
What happens to metal when it reacts?
They loose electrons to forma positively charged ion
What part of the periodic table are the transition metals?
The central block (Between group 2 and 3)
Are transition metals less or more reactive than group 1 elements?
Less
Do group 1 elements or transition metals have a higher melting point?
Transition metals have a higher melting point
Are group 1 elements or transition metals more dense?
Transition metals are more dense
What transition metal is liquid at room temperature?
Mercury
Elements in group 1 can only perform what type of ion?
+1
