Mendeleev Found That When He Arranged the Known Elements According

question 62

Multiple Choice

Mendeleev found that when he arranged the known elements according to their atomic mass,the entries in the table exhibited a pattern of chemical properties that repeated itself in groups of eight elements.This led to the generalization now known as:

• A)an atomic model.
• B)valance electrons.
• C)the periodic table.
• D)the octet rule.