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Crossword Puzzle
Crossword Puzzle

Hard Periodic Puzzle

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Hard Periodic Puzzle
 

Crossword Puzzle

Hard Periodic PuzzleOnline version

Tough terms from the periodic table

by Zayed
1

Series of elements filling the 4f orbitals.

2

Series of radioactive elements filling the 5f orbitals.

3

Group of highly reactive nonmetals in the 17th column.

4

Elements with properties between metals and nonmetals.

5

Elements lacking metal properties; usually poor conductors.

6

Series of metallic elements spanning groups 3 to 12.

7

Variants of an element differing in neutron count.

8

Unreactive gases under standard conditions; usually monatomic.

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