What is atomic radius?
Atomic Radius Trend

Flashcard
•
Chemistry
•
10th - 11th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
The atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons.
2.
FLASHCARD QUESTION
Front
How does atomic radius change across a period in the periodic table?
Back
Atomic radius decreases across a period from left to right.
3.
FLASHCARD QUESTION
Front
What causes the decrease in atomic radius across a period?
Back
The increase in the number of protons in the nucleus pulls the electrons closer, reducing the atomic size.
4.
FLASHCARD QUESTION
Front
How does atomic radius change down a group in the periodic table?
Back
Atomic radius increases as you move down a group.
5.
FLASHCARD QUESTION
Front
What is the reason for the increase in atomic radius down a group?
Back
Atoms have more energy levels, which increases the distance between the nucleus and the outermost electrons.
6.
FLASHCARD QUESTION
Front
What is a cation?
Back
A cation is a positively charged ion formed when an atom loses one or more electrons.
7.
FLASHCARD QUESTION
Front
What is an anion?
Back
An anion is a negatively charged ion formed when an atom gains one or more electrons.
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