Which of the following is the best explanation for the trend observed in the graph? Electronegativity
4.5
3.5
3
25
2
1.5
lui
Electronegativity
1
0.5
0
Fluorine
Corine
Bromine lodine
Astatine
O At has the smallest electronegativity because it has the largest radius and the largest number of
protons.
At has the smallest electronegativity because it has the smallest number of electrons.
O Fhas the largest electronegativity because it contains the smallest number of protons and it has
the smallest radius.
OF has the largest electronegativity because the electrons in element F have the largest attraction
to the nucleus.
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Which of the following represents a balanced nuclear equation showing bismuth-212 undergoing alpha decay followed by beta decay? (2 points) superscript 212 over subscript 83 bi yields superscript 4 over subscript 2 he + superscript 208 over subscript 81 tl yields x−superscript 208 over subscript 82 pb + superscript 0 over subscript -1 beta superscript 212 over subscript 83 bi + superscript 0 over subscript -1 beta yields superscript 4 over subscript 2 he + superscript 208 over subscript 81 tl yields x−superscript 208 over subscript 82 pb superscript 216 over subscript 85 as yields superscript 4 over subscript 2 he + superscript 216 over subscript 85 as yields superscript 216 over subscript 85 pb + superscript 0 over subscript -1 beta superscript 212 over subscript 83 bi yields superscript 0 over subscript -1 beta + superscript 208 over subscript 81 tl yields superscript 208 over subscript 82 pb + superscript 4 over subscript 2 he