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WorksheetsAtoms, Elements, Molecules, and Compounds
Total questions: 15
Worksheet time: 8mins
This is the smallest unit of an element.
atom
molecule
compound
nucleus
Any combination of two or more atoms that are chemically combined is called this.
molecule
compound
element
pure substance
The most pure substances that can be found, made of only one type of atom
elements
atoms
molecules
compounds
Which of the diagrams pictures shows an ELEMENT?
I
II
III
IV
None of the above
Look at the image. It can be described as
an element and a molecule
an element and an atom
a compound and a molecule
Look at the image. It can be described as
an element made of molecules
an element made of atoms
a compound and a molecule
Take a look at the image. Which of the following molecules are ALSO classified as compounds? Select ALL that apply!
nitrogen oxide
water
nitrogen dioxide
chlorine
A pure substance made up of one type of atom only
atom
element
molecule
compound
The smallest unit of matter; the smallest particle of an element that can exist
atom
element
molecule
compound
Two or more atoms bonded together
atom
element
molecule
compound
Two or more atoms OF DIFFERENT ELEMENTS bonded together
atom
element
molecule
compound
True or False: All COMPOUNDS are MOLECULES
True
False
True or False: All MOLECULES are COMPOUNDS
True
False
