Formulas for Binary Compounds

Flashcard
•
Chemistry
•
10th Grade
•
Hard
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16 questions
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1.
FLASHCARD QUESTION
Front
What is the charge of a calcium ion (Ca)?
Back
+2
2.
FLASHCARD QUESTION
Front
What is the formula for the ionic compound formed between potassium (K) and nitrogen (N)?
Back
K3N
3.
FLASHCARD QUESTION
Front
What is the formula for the ionic compound formed between calcium (Ca) and bromine (Br)?
Back
CaBr2
4.
FLASHCARD QUESTION
Front
What is the chemical formula for the ionic compound formed between potassium (K) and oxygen (O)?
Back
K2O
5.
FLASHCARD QUESTION
Front
How many electrons does a phosphorus atom need to gain to achieve a full octet?
Back
3
6.
FLASHCARD QUESTION
Front
What is the general rule for determining the charge of a monatomic ion?
Back
The charge is equal to the number of electrons lost or gained to achieve a full outer shell.
7.
FLASHCARD QUESTION
Front
What is the octet rule in chemistry?
Back
Atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons.
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