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UNDERSTANDING CONCEPTS-Fill in the Blanks:
Periodic Trends: Write either INCREASE or DECREASE or VARIABLE:
17.lon size = Atom → Cation
18. Atomic radius (size) = Down a group
19. Electronegativity = Across a period left
20. Ionization energy = Down a group
Atom Anion
Across a period right
Up a group
Across a period left

Sagot :

arslanamir186

Answer:

17 decrease

18 increase

19 increase

20 decrease

Explanation:

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