A bit of history
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100
The scientist who developed the first periodic table, arranging elements based on their atomic masses.
Who is Mendeleev?
100
The elements on the right hand side of the periodic table
What are non-metals?
100
Another name for the group 7 elements?
What are The Halogens
100
Element used in glowing signs
What is Neon?
100
An organelle that contains cells sap
What is vacuole?
200
The scientist who developed a table of elements in the form of Octaves.
Who is Newland?
200
Property of a metal- meaning to ring
What is sonorous?
200
Name the element 
What is Chlorine?
200
An unreactive element used in Lasers and satellites
What is Xenon?
200
Controversial form of cell treatment
What are stem cells?
300
The genius of Mendeleev's table
What is gaps?
300
The vertical columns in the periodic table
What are groups?
300
Name the element
What is Iodine?
300
A reactive element found in bananas
What is Potassium?
300
Specialised cell: lots of chloroplast- thin cell wall
What is a palisade cell?
400
The top number on each element
What is the relative atomic mass?
400
The horizontal columns in the periodic table?
What are periods?
400
As you move down this group 7 this decreases
What is reactivity?
400
Element used in cancer treatment
What is Radon?
400
Has hair like projections for wafting
What is Cilia cell?
500
Mendeleev left gaps in his periodic table for undiscovered elements. This element, discovered later, perfectly fit into the gap he left for it
What is Gallium?
500
Elements that have properties of metals and non-metals
What are metalloids?
500
As you move down the group 7 this increases
What is boiling point?
500
An element needing military clearance to buy
What is Francium?
500
Produces mucus in your throat, nose and other places
What is a globular cell?