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Decode the atomic puzzle - discover where protons and electrons reside, their role in mass, valence electrons, charge impact, and reactivity levels. Unravel the mysteries of stable atoms and nucleus composition. Get insights into electron behavior and stability rules.
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Where are protons found? • In the nucleus
Where are electrons found? • In the electron cloud
What is the mass of a proton? • One AMU
What is the mass of the neutron? • One AMU
If an atom has 12 protons, how many electrons would it need to be neutral? • 12 electrons
If an atom had 1 valence electron, how reactive would it be? • REALLY SUPER DUPER EXTREMELY REACTIVE!
If an atom had 8 valence electrons, how reactive would it be? • Not reactive at all
If an atom had 3 protons and 4 electrons, what would its overall charge be? • - 1…think… • +++ • - - - -
If an atom had 5 protons and 2 electrons, what would its overall charge be? • + 3 • +++++ • - -
Would this atom be more likely to lose or steal electrons? LOSE
Would this atom be more likely to lose or steal electrons? Steal
What makes up the mass of the nucleus? • Protons and Neutrons
What are valence electrons? • Electrons in the outer most ring
How many electrons can each ring hold? • 1st -2 • 2nd – 8 • 3rd - 8
How many valence electrons does it take to be stable? • 8 (octet rule)
How reactive is an element with 7 valence electrons? • REALLY SUPER DUPER EXTREMELY!!!!
If an atom is unstable, what will it do to become stable? • It will gain or lose electrons
What is the mass of 1 electron? • 1/2000 amu
If an atom has 20 protons and 18 electrons, what is its charge? And how reactive is it? • +2 charge • Very reactive