Which of the following is an example of an element?
No element will have two upper case letters together.
The smallest unit of an element is a(n) .
The periodic table is organized by atomic number. The atomic number is equal to
The columns in the periodic table are called groups or families. Elements that belong to the same family
This element is required for photosynthesis AND can rust your bike
In the periodic table, the horizontal rows are called periods and the vertical rows (columns) are called groups or families.
An atom is made up of
All the atoms of a given element, for example Oxygen, have the same number of
Which of the following could be an element symbol (thus be present in the periodic table)
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