ATOMIC STRUCTURE If you see a cloud circle that in your foldable.

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Presentation transcript:

ATOMIC STRUCTURE If you see a cloud circle that in your foldable. = IMPORTANT INFORMATION

THE ATOM IS MADE OF THREE SUBATOMIC PARTICLES PROTONS NEUTRONS ELECTRONS THE ATOM HAS A NUCLEUS

ELECTRON NOTES BEHIND THE TITLE FLAP LOCATION: FOUND OUTSIDE OF THE NUCLEUS CHARGE: e- HAVE A -1 CHARGE MASS: e- HAS A MASS < 1 AMU “e- and p+ are the same, unless there’s a charge you’ll lose or gain.”

ELECTRON e- = # of p+ when the atom is neutral e- can form ions. Ions: charged atoms +Ions=cations (e- are lost) -Ions= anions (e- are gained)

PROTON BEHIND THE TITLE FLAP LOCATION: FOUND INSIDE OF THE NUCLEUS CHARGE: p+ HAVE A +1 CHARGE MASS: p+ HAS A MASS 1 AMU

PROTON p+ GIVES THE ELEMENT’S IDENTITY p+ = atomic # on the periodic table 12  atomic # Mg 24.3050  atomic mass

NEUTRONS BEHIND THE TITLE FLAP LOCATION: FOUND INSIDE OF THE NUCLEUS CHARGE: n0 HAVE A NO CHARGE MASS: n0 HAS A MASS 1 AMU

NEUTRONS n0 HELPS DETERMINE THE MASS OF THE ATOM. n = MASS # - p+ MASS # IS THE WHOLE # OF THE ATOMIC MASS.

NUCLEUS BEHIND THE TITLE FLAP LOCATED IN THE CENTER OF THE ATOM . NUCLEUS GIVES THE MASS OF THE ATOM. NUCLEUS HAS A POSITIVE CHARGE.

NUCLEUS NUCLEUS MASS = MASS # MASS # = n0 + p+ Isotopes: same # of protons, different # of neutrons. Mass # 107 (n0 changes) 108 Ag Ag Atomic # 47 (p+ stays the same)