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 Schools Business

Features Pricing Schools Business

6 Questions

2 Views

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

Which of the following best describes the relationship between protons and neutrons in an atom?

Protons and neutrons always have the same number in an atom.

Protons determine the element, while neutrons influence its isotope. (correct)

Protons are positively charged particles, while neutrons have no charge. (correct)

Protons and neutrons are both found in the electron cloud surrounding the nucleus.

What is the main difference between an atom and an ion?

An atom can be found in a solid, liquid, or gas, while an ion can only be found in a liquid.

An ion is a neutral atom, while an atom is a charged atom.

An atom always has a positive charge, while an ion can have either a positive or negative charge.

An atom has a stable number of electrons, while an ion has gained or lost electrons. (correct)

How many electrons can the third energy level of an atom hold, according to the Bohr model?

8 (correct)

What is the mass of a single electron in atomic mass units (a.m.u.)?

<p>$rac{1}{1836}$ a.m.u. (B)</p> Signup and view all the answers

Which of the following is NOT true about isotopes?

<p>Isotopes are always radioactive. (B)</p> Signup and view all the answers

Signup and view all the answers

Study Notes

Atomic Structure

Atoms are the smallest part of an element and make up all matter.
Atoms are composed of three subatomic particles: protons, neutrons, and electrons.
Protons have a mass of 1 atomic mass unit (a.m.u.) and a positive charge (+1). They are located in the nucleus.
Neutrons have a mass of 1 a.m.u. and no charge. They are also located in the nucleus.
Electrons have a mass of 1/1836 a.m.u. and a negative charge (-1). They are found in the electron cloud surrounding the nucleus.
Atoms of the same element have the same number of protons.
Ions are charged atoms that have lost or gained electrons.
Isotopes are atoms of the same element that have a different number of neutrons.
The Bohr model shows electrons orbiting the nucleus in energy levels.
The first energy level can hold two electrons.
The next two energy levels can hold eight electrons each.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Test your knowledge on atomic structure with this quiz! It covers the basics of atoms, subatomic particles, ions, isotopes, and the Bohr model. Perfect for students learning about chemistry fundamentals.