periodic table in chemistry
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it's assassin's a periodic table
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Mendeleev gave a periodic law on the basis of vertical columns being called group and horizontal rows being called periods. Which states that"the properties of elements are a periodic function of atomic masses".
◇ FEATURES:
A) the table contains 8 vertical columns called groups and 6 horizontal rows called periods.
B)Mendeleev left gaps for the elements not discovered at that time. He named Eka-boron, Eka -Aluminium, Eka-silicon which are now known as scandium, gallium, germanium respectively.
C ) Mendeleev also predicted the atomic masses and properties of several elements that were not known at that time.
◇ FEATURES:
A) the table contains 8 vertical columns called groups and 6 horizontal rows called periods.
B)Mendeleev left gaps for the elements not discovered at that time. He named Eka-boron, Eka -Aluminium, Eka-silicon which are now known as scandium, gallium, germanium respectively.
C ) Mendeleev also predicted the atomic masses and properties of several elements that were not known at that time.
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