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Periodic Table Crossword Puzzle

Horizontales
The gas of this element is colorless, odorless, and tasteless and necessary for us to live
Has a boiling point of 876°K and commonly used in 1800s as a lethal poison
It's atomic number is 36 and has 8 valance electrons
Negatively charged particle found in the energy level of an atom
This element is named after a famous physicist
Noble metal with a boiling point of 3080°K
Arrangement of chemical elements according to atomic number
Total number of protons and neutrons in the nucleus of an atom
A vertical column of elements in the periodic table
Has an ionic radius of 134
The atomic symbol for this element is K
The most unstable element on the periodic table and named after the country of its discoverer
Positively charged particle in the nucleus of an atom
Verticales
The most abundant element in the universe and has 1 valance electron
Neutral particle in the nucleus of an atom
This element has an atomic mass of 63
A horizontal row of elements in the periodic table
The elemnts that are usually poor conductors of heat and electricity
This element has an atomic weight of 65.39
Number of protons in the nucleus of an atom
Has an atomic weight of 244 and one of the most radioactive elements
Transition metal with an atomic mass of 88.9059
This element has an atomic weight of 12.11
The smallest particle that has the properties of an element
The atomic symbol for this element is Fe