Matter, Elements, Atoms, Ions

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Questions and Answers

If an atom loses an electron, it becomes:

A cation, carrying a positive charge. (correct)
An isotope, with a different atomic mass.
A neutron, carrying no charge.
An anion, carrying a negative charge.

Which subatomic particles are located in the atomic nucleus?

Electrons and ions
Protons and neutrons (correct)
Protons and electrons
Neutrons and electrons

What distinguishes an anion from a cation?

Anions have more protons than electrons, while cations have more electrons than protons.
Anions are neutral particles found in the nucleus, while cations are charged particles orbiting the nucleus.
Anions are negatively charged due to electron gain, while cations are positively charged due to electron loss. (correct)
Anions are positively charged due to electron loss, while cations are negatively charged due to electron gain.

Which of the following best describes an electrolyte?

<p>A solution containing free ions that can conduct electricity. (A)</p> Signup and view all the answers

How does a chemical compound differ from a single element?

<p>A chemical compound is a substance formed from a combination of elements, whereas a single element is a pure substance consisting of only one type of atom. (B)</p> Signup and view all the answers

Flashcards

What is matter?

Anything that has mass and takes up space; exists as solid, liquid, or gas.

What are chemical compounds?

Substances made of two or more elements chemically bonded.

What is an atom?

The smallest unit of an element that retains its chemical properties.

What is the atomic nucleus?

The central part of an atom, containing protons and neutrons.

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What are ions?

Atoms or molecules that have gained or lost electrons, resulting in an electrical charge.

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Study Notes

Matter occupies space, possesses mass, and exists as a solid, liquid, or gas.
Elements compose all matter.
Chemical compounds result from the combination of elements.
Atoms represent the smallest unit of an element.
The atomic nucleus contains protons and neutrons.
Protons are positively charged particles.
Neutrons are particles without any electrical charge.
Electrons are negatively charged particles.
Ions are electrically charged atoms, molecules, or particles.

Cations

Cations have a positive charge because of electron loss.

Anions

Anions possess a negative charge due to electron gain.

Electrolyte

An electrolyte contains free ions within a solvent.

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Description

An overview of matter, elements, and atoms, including protons, neutrons, and electrons. Explanation of ions, including cations (positive charge due to electron loss) and anions (negative charge due to electron gain). Definition of an electrolyte as a substance containing free ions within a solvent.