
Understanding Atomic Structure and Particles

Quiz
•
Science
•
9th Grade
•
Easy
Standards-aligned

James Wilson
Used 1+ times
FREE Resource
13 questions
Show all answers
1.
DROPDOWN QUESTION
1 min • 1 pt
Which of the following correctly describes the location of protons within an atom?
(a)
In the electron cloud
Orbiting the nucleus
In the outer shell
Answer explanation
Protons are positively charged particles located in the nucleus of an atom. The other options incorrectly suggest they are found in the electron cloud, orbiting, or in the outer shell.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If an atom has 6 protons, 6 neutrons, and 6 electrons, what is its overall electrical charge?
+6
0
-6
+12
Answer explanation
An atom with 6 protons and 6 electrons has equal positive and negative charges, resulting in a net charge of 0. The neutrons do not affect the charge. Therefore, the overall electrical charge is 0.
Tags
DOK Level 2: Skill/Concept
FL.SC.912.P.8.4.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain how the mass of an atom is primarily determined by its protons and neutrons.
Electrons have a significant mass that contributes to the atom's mass.
Protons and neutrons have similar masses, which are much larger than that of electrons.
Neutrons have no mass, so only protons contribute to the atom's mass.
The mass of an atom is equally distributed among protons, neutrons, and electrons.
Answer explanation
Protons and neutrons have similar masses, both of which are significantly larger than that of electrons. Therefore, the mass of an atom is primarily determined by the combined mass of its protons and neutrons.
Tags
DOK Level 3: Strategic Thinking
FL.SC.912.P.8.4.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which particle is responsible for the chemical properties of an atom?
Proton
Neutron
Electron
Nucleus
Answer explanation
The electron is responsible for the chemical properties of an atom because it determines how atoms interact and bond with each other. The arrangement and behavior of electrons in the outer shell dictate an atom's reactivity.
Tags
DOK Level 2: Skill/Concept
FL.SC.912.P.8.4.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Compare the electrical charges of protons, neutrons, and electrons.
Protons are negatively charged, neutrons are neutral, and electrons are positively charged.
Protons are positively charged, neutrons are neutral, and electrons are negatively charged.
Protons and electrons are neutral, while neutrons are positively charged.
All three particles are neutral.
Answer explanation
Protons have a positive charge, electrons have a negative charge, and neutrons are neutral. Therefore, the correct choice is that protons are positively charged, neutrons are neutral, and electrons are negatively charged.
Tags
DOK Level 2: Skill/Concept
FL.SC.912.P.8.4.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the arrangement of electrons in an atom affect its chemical reactivity?
Atoms with more electrons are less reactive.
The arrangement of electrons determines how atoms interact with each other.
Electrons do not affect chemical reactivity.
Only the protons affect chemical reactivity.
Answer explanation
The arrangement of electrons, particularly in the outer shell, determines how easily an atom can bond with others. This influences its chemical reactivity, making the correct choice that it dictates atomic interactions.
Tags
DOK Level 3: Strategic Thinking
FL.SC.912.P.8.4.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements is true about neutrons?
Neutrons are found in the electron cloud.
Neutrons have a positive charge.
Neutrons have no electrical charge.
Neutrons are lighter than electrons.
Answer explanation
Neutrons are subatomic particles found in the nucleus of an atom and have no electrical charge, making the statement 'Neutrons have no electrical charge' true. The other statements are incorrect.
Tags
DOK Level 2: Skill/Concept
FL.SC.912.P.8.4.
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