Understanding Ions and the Octet Rule

Understanding Ions and the Octet Rule

Assessment

Interactive Video

Chemistry, Science

8th - 10th Grade

Easy

Created by

Emma Peterson

Used 2+ times

FREE Resource

The video tutorial explains the octet rule, where atoms are most stable with eight valence electrons. It discusses how atoms form ions to achieve this stability by gaining or losing electrons, resulting in cations (positive) and anions (negative). The processes of oxidation (loss of electrons) and reduction (gain of electrons) are detailed, with memory aids like 'OIL RIG' and 'LEO says GER'. The video covers the stability of noble gases, the electron gain in halogens, and the formation of anions in nonmetals. It also explains how metals form cations through oxidation and the unique behavior of Group 14 elements. The tutorial concludes with a summary of oxidation states and periodic trends.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the charge of a cation?

Positive

Negative

Neutral

Variable

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which process involves the gain of electrons?

Oxidation

Ionization

Reduction

Neutralization

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why are noble gases non-reactive?

They are unstable

They are metals

They lack electrons

They have a full octet

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to halogens to achieve a stable octet?

They gain electrons

They remain neutral

They share electrons

They lose electrons

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of ions do nonmetals typically form?

Cations

Anions

Variable ions

Neutral ions

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Through which process do metals form cations?

Reduction

Oxidation

Neutralization

Ionization

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the oxidation state of a metal in group 13 after losing electrons?

+3

+4

+1

+2

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