Potassium and Fluorine Compounds

Potassium and Fluorine Compounds

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Lucas Foster

FREE Resource

The video tutorial explains how to write the chemical formula for potassium fluoride. It begins by identifying potassium and fluorine on the periodic table, noting their symbols as K and F, respectively. The tutorial then discusses the importance of balancing charges, highlighting that potassium has a +1 charge and fluorine has a -1 charge. These charges balance each other out, resulting in a net charge of zero. The correct chemical formula for potassium fluoride is thus determined to be KF.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which element is represented by the symbol 'K' in the periodic table?

Fluorine

Calcium

Potassium

Krypton

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the charge of potassium when it forms an ion?

+1

-1

+2

0

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the charge of fluorine compare to that of potassium?

Fluorine has a +1 charge

Fluorine has no charge

Fluorine has a -1 charge

Fluorine has a +2 charge

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the net charge of the compound formed by potassium and fluorine?

-1

0

+2

+1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the correct chemical formula for potassium fluoride?

KF

K2F2

K2F

KF2