JAMB - Chemistry (2018 - No. 17)
The periodic classification is an arrangement of the elements
atomic weights
isotopic weights
molecular weights
atomic numbers
Explanation
Elements in the periodic table are arranged according to their atomic number (proton number). Electronegativity increase from left to right while atomic radius increases down the group
Elements in the periodic table are arranged according to their atomic number (proton number). Electronegativity increase from left to right while atomic radius increases down the group
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