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From top to bottom within a group of the periodic table, first ionization energy tends to *

A. increase.
B. decrease.
C. remain approximately the same.
D. change in an irregular way.

User Parag Soni
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1 Answer

6 votes

Answer:

B. decrease.

Step-by-step explanation:

Because size of atom increases so it is easy to remove electron

User Toby Jackson
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