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Elements and the Periodic Table
Physical & Chemical Change
Anything Goes!
Ionic Compounds
Molecular Compounds
100
Halogens are found in this group of the periodic table.
What is group VII? (7 or 17 also accepted).
100
This type of change does not result in a change at the subatomic level. It is only a rearrangement of the particles.
What is a physical change?
100
The Lewis-dot diagram for Bromine.
What is "B" with 7 dots around it?
100
An positive ion has this many electrons in relation to the number of protons it has.
What is less?
100
This is the name given to a shared group of electrons.
What is a covalent bond?
200
These are very stable elements (with a full outer orbital) that do not react with other substances.
What are noble gases?
200
A gas produced, precipitate forming, a new odour, energy released, or a change of colour could each be evidence of this.
What is an indication of a chemical change?
200
The Lewis-dot diagram for an oxygen ion.
What is an "O" with eight dots and a -2 charge.
200
This is the name for Mg3(PO4)2
What is magnesium phosphate?
200
This is a very common molecular compound made from the synthesis of hydrogen gas with oxygen.
What is water?
300
These kinds of elements do NOT give electrons up easily making them negatively charged as ions. They are given the ending "-ide" in ionic compounds.
What are non-metals?
300
Colour, transparency, and lustre are examples of this kind of property.
What is physical?
300
The charge on a sodium ion.
What is +1.
300
This ultimately determines the ratio of ions that bond in an ionic compound.
What is charge?
300
This is the prefix used for "4".
What is tetra?
400
Lewis-dot diagram for a chlorine ion.
What is "Cl" surrounded by 8 dots, brackets and a -1 charge.
400
This is the name given to a solid formed out of two solutions.
What is a precipitate?
400
The name of CCl4.
What is carbon tetrachloride?
400
This is the name given to a negatively charged ion.
What is an anion?
400
PF5
What is phosphorus pentafluoride?
500
This is the name for electrons found in the outermost orbital.
What is "valence"?
500
A change of state is an example of this.
What is a physical change?
500
The formula of aluminum nitrate.
What is Al(NO3)3?
500
Tin (IV) sulfate
What is Sn(SO4)2?
500
P2O5
What is diphosphorus pentoxide?