This Science quiz is called 'Atoms and Elements 4' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.
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A chemical element is a pure chemical substance consisting of one type of atom distinguished by its atomic number, which is the number of protons in its nucleus. In Science, the periodic table contains about 118 elements so far, but this may very well increase if we discover more elements.
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