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UNIT 1 BTEC Applied Science Biology Flashcards (Distinction* Level)
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How do you represent electron affinity in an equation?
How do you represent electron affinity in an equation?
X (g) + e- —> X- (g)
1st electron affinity :
Cl (g) + e- —> Cl- (g)
2nd electron affinity :
Cl- (g) + e- —> Cl2- (g)
What is atomic radius?
When does it increase and decrease?
What is atomic radius?
When does it increase and decrease?
The distance from the nucleus of an atom to the outer electron.
INCREASES : down the group
DECREASES : across the period
What is Diapole-Diapole interaction?
What elements can it NOT happen with?
What is Diapole-Diapole interaction?
What elements can it NOT happen with?
A stronger and temporary attractive force that results when the electron in 2 atoms occupy positions that make the atoms form temporary dipoles.
This can only happen with Hydrogen and all gases but not Nitrogen, Oxygen and Fluoride.
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