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intro to elements and isotopes

teacher: Ramiro G Gonzalez
Horizontales
Atomic particle without any charge
Ag is its symbol, it is a transitional metal
Person who fist developed the periodic table
What matter is made of
Found on the left side of the periodic table
Most abundant element on earth
____________ isotopes release particle or radiation
His model looks like a solar systek
Are unstable isotopes
Atomic mass unit
Sodium and potassium are examples of this group
There are 92 naturally kinds
The plum pudding model
Verticales
______________metals found in the middle of the periodic table
Positively charged particle
Negatively charged atomic particle
Atoms of the same element with different number of neutrons
Found on the right side of the periodic table
___________ gases are the most nonreactive non-metals
Chlorine and bromine belong to this group
________force keeps the nucleus together