Mendeleev found that elements with _____ fell into groups on the table.
Atomic number number is the number of _______ in the nucleus of an atom.
Moseley improved the arrangement of the periodic table by arranging the elements by increasing _________.
What is the name of the elements found in Group 2 on the periodic table?
Elements in Groups 3-12 are called________.
A major difference between the two rows of inner transition elements is that lanthanides...
A period's number on the periodic table corresponds to the number of...
The location of metals on the periodic table is on the...
Most non-metals on the periodic table are located on the...
Which group number belongs to the noble gases?
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