What are Elements?
What is the Periodic Table?
What are Compounds?
Metals, Non Metals, Semimetals and Gases
Did you know?
100
This is a substance that cannot be broken down into other substances.
What is an element?
100
This is an abbreviation of an element's name in Latin or Greek.
What is the chemical symbol?
100
When two or more elements chemically combine this forms.
What is a compound?
100
Name three properties of Metal.
What are shiny, stretched and conduct electricity?
100
This causes rust to worsen- quicker.
What is adding water?
200
This is a positively charged particle found in the nucleus.
What is a proton?
200
Helium is an example of this kind of gas, that hardly ever combines with other elements to form molecules.
What is a noble gas?
200
These use chemical symbols and numbers to show the kinds and numbers of atoms in a compound.
What is a Chemical Formula?
200
Many nonmetals are this.
What are gases?
200
This is the reason that Carbon substances can have very different properties.
What is carbon atoms can be arranged in different ways?
300
These are shiny and bendable.
What are metals?
300
In the Periodic Table, a column is called this.
What is a group?
300
This is a process in which one or more substances are changed into one or more different substances.
What is a chemical reaction?
300
You can eat this, which contains potassium, which the cells of your body need to function properly.
What is a banana (potassium is a metal)?
300
Water is a compound made up of this many elements.
What is TWO?
400
These are found in the nucleus.
What are protons and neutrons?
400
Elements are arranged by their properties in this.
What is a Periodic Table?
400
This is the reason that compounds are called "pure substances".
What is because every molecule in a compound is like every other molecule and has the same properties?
400
This is a semimetal that makes up about 28% of the Earth's crust. (This makes this element Earth's second most common element).
What is silicon?
400
This is what Ernest Rutherford showed about the atom.
What is Atoms have a small central core?
500
All atoms of an element have the same number of these.
What are protons in their nuclei?
500
The modern Periodic Table arranges the elements by this.
What is their weight?
500
This is why, even though salt is a metal, it doesn't look or feel like a metal.
What is because compounds have different properties than the elements that make them up?
500
This is a nonmetal (which are dull in color and do not conduct electricity and break easily) which is very important in the chemical industry.
What is sulfur?
500
On the periodic table, these are located between the metals and nonmetals.
What are semimetals?
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