Unit 1 Review

Flashcard
•
Chemistry
•
10th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Which element in Period 2 has the greatest atomic radius?
Back
Lithium (Li) has the greatest atomic radius in Period 2.
2.
FLASHCARD QUESTION
Front
How many valence electrons are found in atoms of group 1?
Back
Atoms of group 1 have 1 valence electron.
3.
FLASHCARD QUESTION
Front
Which of the following elements has the smallest radius: Mg, Al, Si, K?
Back
Silicon (Si) has the smallest atomic radius among the given elements.
4.
FLASHCARD QUESTION
Front
What is the Lewis structure of a sodium ion?
Back
The Lewis structure of a sodium ion (Na⁺) shows no dots around the symbol, indicating it has lost its one valence electron.
5.
FLASHCARD QUESTION
Front
Anions are _______ that form ____________ ions and __________ electrons.
Back
Anions are nonmetals that form negative ions and gain electrons.
6.
FLASHCARD QUESTION
Front
What is atomic radius?
Back
Atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons.
7.
FLASHCARD QUESTION
Front
What trend does atomic radius follow in the periodic table?
Back
Atomic radius increases down a group and decreases across a period from left to right.
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