Periodic Trends

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•
Chemistry
•
10th - 11th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the trend in atomic radius across a period in the periodic table?
Back
Atomic radius decreases from left to right across a period due to increasing nuclear charge, which pulls electrons closer to the nucleus.
2.
FLASHCARD QUESTION
Front
What is the trend in atomic radius down a group in the periodic table?
Back
Atomic radius increases down a group because additional electron shells are added, increasing the distance between the nucleus and the outermost electrons.
3.
FLASHCARD QUESTION
Front
What is electronegativity?
Back
Electronegativity is the ability of an atom to attract electrons in a chemical bond.
4.
FLASHCARD QUESTION
Front
What is the trend in electronegativity across a period?
Back
Electronegativity increases from left to right across a period due to increasing nuclear charge.
5.
FLASHCARD QUESTION
Front
What is the trend in electronegativity down a group?
Back
Electronegativity decreases down a group because the increased distance of the outer electrons from the nucleus reduces the nucleus's ability to attract electrons.
6.
FLASHCARD QUESTION
Front
Which halogen has the smallest atomic radius?
Back
Fluorine (F) has the smallest atomic radius among the halogens.
7.
FLASHCARD QUESTION
Front
Which alkaline-earth metal has the smallest electronegativity?
Back
Radium (Ra) has the smallest electronegativity among the alkaline-earth metals.
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