Phosphide Ion and Lewis Structures

Phosphide Ion and Lewis Structures

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Practice Problem

Hard

Created by

Olivia Brooks

FREE Resource

The video tutorial explains how to draw the Lewis structure for the phosphide ion (P3-). It begins by illustrating the Lewis structure for neutral phosphorus, which has five valence electrons. The tutorial then adds three extra electrons to account for the negative charge of the phosphide ion, resulting in a stable octet. The final structure is enclosed in brackets to indicate the ion's charge.

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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial step in drawing the Lewis structure for the phosphide ion?

Find phosphorus on the periodic table

Add extra electrons to phosphorus

Draw the Lewis structure for phosphorus as a neutral element

Identify the charge of the ion

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which group is phosphorus found on the periodic table?

Group 15

Group 16

Group 17

Group 14

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many valence electrons does neutral phosphorus have?

Eight

Five

Seven

Three

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What change is made to phosphorus to form the phosphide ion?

Remove one electron

Remove three electrons

Add three electrons

Add one electron

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why does phosphorus have a minus three charge in the phosphide ion?

It gains three protons

It gains three electrons

It loses three protons

It loses three electrons

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the term used to describe the eight valence electrons around the phosphide ion?

Quartet

Sextet

Octet

Duet

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of having an octet in the phosphide ion?

It makes the ion unstable

It makes the ion neutral

It makes the ion stable

It makes the ion positively charged

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