Phosphorus and Its Ions Concepts

Phosphorus and Its Ions Concepts

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Mia Campbell

FREE Resource

The video tutorial explains the differences between phosphorus, phosphide, phosphite, and phosphate. It begins with an introduction to the phosphorus atom, highlighting its neutral state. The phosphide ion is then discussed, emphasizing its negative charge due to added electrons. The tutorial further explores polyatomic ions, focusing on phosphate and phosphite, and provides a rule for remembering the difference in oxygen atoms. The video concludes with tips for memorizing these differences, using examples like sulfate and nitrate.

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the charge of a neutral phosphorus atom?

Variable

Neutral

Negative

Positive

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many extra electrons does a phosphide ion have compared to a neutral phosphorus atom?

Four

Three

Two

One

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the suffix 'ide' indicate in phosphide?

A single atom ion

An atom with a positive charge

A polyatomic ion

A neutral atom

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the suffix 'ate' signify in chemical nomenclature?

A single atom ion

A polyatomic ion with more oxygen

A neutral atom

An ion with a positive charge

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many oxygen atoms are in a phosphate ion?

Five

Two

Three

Four

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the chemical formula for a phosphite ion?

PO4 3-

PO3 3-

PO2 3-

PO5 3-

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which ion has one less oxygen atom than phosphate?

Phosphate

Phosphorus

Phosphite

Phosphide

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a polyatomic ion?

Phosphorus

Phosphide

None of the above

Phosphite

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main difference between phosphide and phosphite ions?

Number of neutrons

Number of oxygen atoms

Number of electrons

Number of protons