Atomic Structure Quiz

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Questions and Answers

What is the charge of a proton?

Varies depending on the atom
+1 (correct)
-1
0

Electrons are located in the nucleus of an atom.

False (B)

List the three smaller particles that make up an atom.

Protons, neutrons, electrons

The dense core of an atom is called the ______.

nucleus Signup and view all the answers

Match the following atomic components with their descriptions:

Proton = Located in the nucleus and has a positive charge Neutron = Located in the nucleus and has no charge Electron = Orbits around the nucleus and has a negative charge Atomic unit = Mass measurement based on protons or neutrons Signup and view all the answers

Which particle is responsible for determining the identity of an atom?

Proton (C) Signup and view all the answers

Electrons have a mass that is comparable to protons and neutrons.

False (B) Signup and view all the answers

What is the atomic number of an element defined as?

The number of protons in an atom. Signup and view all the answers

The sum of protons and neutrons in an atom is called the ______.

atomic mass Signup and view all the answers

Match the following subatomic particles with their characteristics:

Proton = +1 charge Neutron = Neutral charge Electron = -1 charge Atomic Number = Number of protons in an atom Signup and view all the answers

What does the atomic number represent?

Number of protons and electrons (B) Signup and view all the answers

Isotopes of an element have the same number of neutrons.

False (B) Signup and view all the answers

How do you calculate the number of neutrons in an atom?

Mass number - atomic number Signup and view all the answers

The electron configuration of a typical atom can be represented as ______.

2, 8, 8 Signup and view all the answers

Match the following terms with their definitions:

Atomic Number = Number of protons Isotope = Different forms of the same element Electron shell = Layers surrounding the nucleus Mass number = Total number of protons and neutrons Signup and view all the answers

Flashcards

Element

The simplest substances, made of one type of atom.

Atomic Structure

Atoms consist of protons, neutrons, and electrons.