Atomic Structure

Video 3
The Heart of Matter: Exploring the Atomic Core

Learning Objective
Attribution/Citation
Transcript
Video Link

Learning Objective:
Describe the structure of the atom and properties & location of sub-atomic particles and define what isotopes are.

Attribution

The Heart of Matter: Exploring the Atomic Core by Natasha Ramroop Singh and the TRU Open Press is licensed under a CC BY-NC-SA 4.0 license.

Citation Information

Use the information listed below to generate a citation for this video.

Authors: Natasha Ramroop Singh, TRU Open Press
Publisher: TRU Open Press
Website: Chemistry for Biologists
Title: The Heart of Matter: Exploring the Atomic Core
Publication Date: March 14, 2024
Location: Kamloops, British Columbia
Video URL: https://barabus.tru.ca/media/openpress/biol1110/03.mp4
Page URL: https://chemistryforbiologists.trubox.ca/2024/03/14/3-the-heart-of-matter-exploring-the-atomic-core/
Website URL: https://chemistryforbiologists.trubox.ca/

Transcript:
The video transcripts are accessible for viewing and downloading below.

3-The-Heart-of-Matter Download

Video Link:
https://barabus.tru.ca/media/openpress/biol1110/03.mp4

Video 3
Pre-video Activity

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Before Video 3 – The Heart of Matter: Exploring the Atomic Core

Video 3 – Learning Activity The Heart of Matter: Exploring the Atomic Core

Which of the following statements accurately distinguishes between substance, chemical, and compound?

A substance is a pure form of matter composed of two or more chemically bonded elements, while a chemical is any material with a distinct chemical composition, and a compound is a type of substance that cannot be broken down into simpler substances by physical means.

A substance is any material with a distinct chemical composition, while a chemical is a pure form of matter composed of two or more chemically bonded elements, and a compound is a mixture of substances with variable composition.

A substance is a type of compound with a fixed chemical composition, while a chemical is any material that undergoes a chemical reaction, and a compound is a type of chemical that exists in pure form.

A substance is a pure form of matter with uniform properties, while a chemical is any material produced by a chemical reaction, and a compound is a substance made up of identical atoms or molecules.

Which of the following statements accurately describes isotopes?

Isotopes are elements that have different numbers of electrons but the same number of protons in their nuclei.

Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons in their nuclei.

Isotopes are elements that have the same number of neutrons but different numbers of protons in their nuclei.

Isotopes are atoms of different elements that have the same number of neutrons in their nuclei.

Which of the following statements accurately describes the properties of electrons, protons, and neutrons?

Electrons are much smaller in mass compared to protons and neutrons, and they have a negative charge, while protons have a positive charge and neutrons are neutral.

Electrons have a positive charge and are located in the nucleus of an atom, while protons and neutrons orbit around it.

Protons have a negative charge and are located outside the nucleus of an atom, while electrons and neutrons occupy the nucleus.

Neutrons have a positive charge and are located in the electron cloud surrounding the nucleus, while electrons and protons make up the nucleus.

Which of the following statements accurately describes the structure of an atom?

The nucleus of an atom contains electrons, while protons and neutrons orbit around it in fixed energy levels.

Electrons, with a negative charge, are located in the nucleus of an atom, while protons and neutrons orbit around it in electron clouds.

The nucleus of an atom contains protons and neutrons, while electrons occupy specific energy levels or orbitals surrounding the nucleus.

Protons and electrons are evenly distributed throughout the atom, while neutrons occupy fixed positions within the electron cloud.

Which of the following statements accurately describes ions?

Ions are atoms of different elements that have gained or lost electrons, resulting in a change in their atomic number.

Ions are atoms of the same element that have gained or lost protons, resulting in a change in their atomic mass.

Ions are atoms or molecules that have gained or lost electrons, resulting in a net positive or negative charge.

Ions are atoms or molecules that have gained or lost neutrons, resulting in changes in their chemical properties.

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Video 3

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