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Why did Mendeleev leave gaps in his version of the periodic table?
Which side of the periodic table are the metals on?
How did Mendeleev decide on the order of the elements in the periodic table?
Name three particles found in an atom and the charge of each
Complete the sentence ' All atoms of one type of element have the same number of...'
What can you say about the number of protons and electrons in an atom?
What does the atomic number tell us about the particles in an atom?
What does the atomic mass tell us about the particles in an atom?
How is an isotope different from an atom?
What name do we give to the rows and columns in a periodic table?
How does the group number on the periodic table relate to the number of electrons in an atom?
