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Atomic Structure and Particles

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Questions and Answers

What are the three main particles that compose an atom?

Electrons, protons, and neutrons (correct)

Electrons, neutrons, and ions

Protons, neutrons, and quarks

Protons, electrons, and positrons

What is the charge of protons in the nucleus of an atom?

Variable charge

Positive charge (correct)

Negative charge

Neutral charge

How are electrons arranged in an atom?

Electrons exist randomly throughout the atom.

Electrons orbit around the nucleus. (correct)

Electrons form clusters within the nucleus.

Electrons are fixed in place within the nucleus.

What drives the attraction between the nucleus and electrons?

<p>The positive charge of the nucleus and the negative charge of electrons.</p> Signup and view all the answers

How many different elements are composed of atoms?

<p>98 elements</p> Signup and view all the answers

Study Notes

Atomic Structure

Atoms are the smallest building blocks of all elements.
They are composed of three main particles: electrons, protons, and neutrons.

Electrons, Protons, and Neutrons

There are 98 different elements, each made up of atoms.
Atoms consist of electrons, protons, and neutrons.

Formation of Atoms

An atom is the smallest unit of an element.
Atoms are comprised of protons and neutrons in the nucleus, with electrons orbiting around it.
The nucleus has a positive charge due to protons, while electrons have a negative charge.

Why the Nucleus Pulls Electrons

The attraction between the positively charged nucleus and the negatively charged electrons creates the planetary model of the atom.
This attraction is similar to the Earth pulling on the Moon.

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Description

Test your knowledge on atomic structure, including the roles of electrons, protons, and neutrons. Understand how atoms form and the significance of the nucleus in the atomic model. This quiz covers the fundamentals of atomic composition and interactions.