What happens to atomic size as you move across the periodic table from left to right?
Periodic Trends

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Chemistry
•
10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Atoms tend to get smaller because they have more protons, which increases the positive charge in the nucleus and pulls the electrons closer.
2.
FLASHCARD QUESTION
Front
Define electronegativity.
Back
Electronegativity is the ability of an atom to attract and accept electrons.
3.
FLASHCARD QUESTION
Front
What trend occurs in metallic character as you move across a period in the periodic table?
Back
The metallic character of the elements decreases.
4.
FLASHCARD QUESTION
Front
Which element is more electronegative: Cl or K?
Back
Cl (Chlorine) is more electronegative than K (Potassium).
5.
FLASHCARD QUESTION
Front
Which element has the largest atomic radius: Mg, B, S, or Br?
Back
Mg (Magnesium) has the largest atomic radius.
6.
FLASHCARD QUESTION
Front
What is the trend in atomic radius as you move down a group in the periodic table?
Back
The atomic radius increases as you move down a group due to the addition of electron shells.
7.
FLASHCARD QUESTION
Front
Explain why ionization energy generally increases across a period.
Back
Ionization energy increases across a period because the increasing nuclear charge holds the electrons more tightly, making them harder to remove.
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