Ions

Ions

Assessment

Flashcard

Chemistry

8th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

2.

FLASHCARD QUESTION

Front

What is the difference between cations and anions?

Back

Cations are positively charged ions formed by the loss of electrons, while anions are negatively charged ions formed by the gain of electrons.

3.

FLASHCARD QUESTION

Front

What is the chemical formula for sodium oxide?

Back

Na₂O

4.

FLASHCARD QUESTION

Front

When are most atoms or ions stable?

Back

When they have 8 valence electrons.

5.

FLASHCARD QUESTION

Front

Why don't noble gases form ions?

Back

They already have a full valence energy level.

6.

FLASHCARD QUESTION

Front

What is the formula for copper (II) fluoride?

Back

CuF₂

7.

FLASHCARD QUESTION

Front

Elements on the LEFT side of the periodic table will most likely form:

Back

Positive ions.

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