Evolution of Chemical Symbols

Evolution of Chemical Symbols

Assessment

Interactive Video

Chemistry, Science, History

6th - 10th Grade

Hard

Created by

Aiden Montgomery

FREE Resource

The video discusses the evolution of chemical element symbols, starting with John Dalton's pictorial symbols, which were difficult to draw. In 1813, John Jacob Berzelius introduced a more practical system using letters, which is the basis for the modern system used today. This modern system simplifies the representation of elements, making it easier to write and remember.

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6 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the main challenge with John Dalton's pictorial symbols for elements?

They were difficult to draw.

They were too simple.

They were not unique.

They were too colorful.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which element was represented by a circle with a dot at the center in Dalton's system?

Helium

Hydrogen

Carbon

Oxygen

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who introduced the system of using letters to represent elements?

John Dalton

Dmitri Mendeleev

John Jacob Berzelius

Marie Curie

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In Berzelius's system, which letters represent helium?

C

He

H

O

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the modern system for determining symbols of elements based on?

Modified Berzelius system

Color codes

Numerical codes

Pictorial symbols

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a feature of the modern symbol system?

It is easy to write and remember.

It is based on Dalton's pictorial symbols.

It uses letters of the alphabet.

It is a modified version of Berzelius's system.