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PToE Trends (Unit 2 Chem)questions well answered to pass
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PToE Trends (Unit 2 Chem)questions well answered to pass
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PToE Trends (Unit 2 Chem)Outermost orbital shell= - correct answer ✔✔Valence shell w/ valence e-
Valence e- = - correct answer ✔✔Highest energy e-
Valence e- is the most - correct answer ✔✔Reactive or can be gained, lost, or shared to form chemical
bonds
Inner e- don't participate in - correct answer ✔✔Bonding or reactions
Elements w/ the same # of valence e- have similar - correct answer ✔✔Chemical properties
Why do elements w/ same # of valence e- have similar properties? - correct answer ✔✔Since they tend
to gain, lose, or share valence e- in the same way
# valence e- = - correct answer ✔✔Group #
4 periodic trends - correct answer ✔✔Atomic radius, ionization energy, electronegativity, electron
affinity
2 factors that cause trends - correct answer ✔✔Effective nuclear charge and shielding effect
Effective nuclear charge - correct answer ✔✔How "strongly" the nucleus holds its e- (more protons per
energy level = stronger pull)
Shielding effect - correct answer ✔✔e- in the outermost E levels are blocked from the pull of the nucleus
by those e- in the lower E levels
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