classification of periodic table Crossword
This printable crossword puzzle on the topic of Elements & Periodic Table has 10 clues. Answers range from 5 to 12 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
Johann Wolfgang dobereiner noticed in group of three elements, each element has similar ___________.
according to the low of octaves, the properties of elements ______ at regular intervals
mendeleev arranged the elements in his periodic table according to
modern periodic table has 7 ________
atomic number is the number of _______ an element has
___________ earth metals have 2 electrons in their last shell
the elements with 5 electrons in valence shell would belong to what type of metals
atomic size decreases in a period due to increase in nuclear _______
__________ gases are the most stable of all elements
which elements don't have electronegativity values
