Which of the following serves as basis for the arrangement of elements in the periodic table?
a. Increasing atomic number
b. Increasing mass number
c. increasing number of p+, e-, no
d. ncreasing number of physical properties
a. Increasing atomic number
b. Increasing mass number
c. increasing number of p+, e-, no
d. ncreasing number of physical properties
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Answer:
a. Increasing atomic number
Explanation:
The periodic table is arranged by atomic weight and valence electrons. These variables allowed Mendeleev to place each element in a certain row (called a period) and column (called a group).
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