Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

Electric Charge and Atomic Structure Quiz

12 Questions

1 Views

Electric Charge and Atomic Structure Quiz

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What did E. Goldstein discover in 1886?

The indivisibility of the atom

The identification of electrons

The existence of sub-atomic particles

The presence of canal rays in a gas discharge (correct)

What is the charge of a proton represented as?

Minus one (-1)

Plus one (+1) (correct)

It varies

Zero (0)

What is the mass of an electron considered to be?

Unknown

Equal to that of a proton

Negligible (correct)

Heavier than a proton

Where were the protons believed to be located within the atom?

In the interior of the atom Signup and view all the answers

What did Rutherford conclude from the α-particle scattering experiment?

A very small fraction of α-particles were deflected by 1800, indicating that all the positive charge and mass of the gold atom were concentrated in a very small volume within the atom. Signup and view all the answers

What did Rutherford calculate about the radius of the nucleus based on his experiment?

The radius of the nucleus is about 105 times less than the radius of the atom. Signup and view all the answers

What is a drawback of Rutherford’s model of the atom?

Any particle in a circular orbit would undergo acceleration, causing it to lose energy and fall into the nucleus. Signup and view all the answers

What feature did Rutherford's nuclear model propose?

There is a positively charged centre in an atom called the nucleus. Nearly all the mass of an atom resides in the nucleus. Signup and view all the answers