Atoms
Authored by Frank Pecora
Chemistry
8th Grade
NGSS covered
Used 14K+ times
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About
This quiz comprehensively covers atomic structure and properties, representing fundamental chemistry concepts appropriate for 8th grade physical science students. The questions systematically build understanding of atomic components, starting with basic particle identification (protons, neutrons, electrons) and their locations within the atom, then progressing to more complex relationships between atomic number, mass number, and atomic mass. Students must demonstrate mastery of how protons determine element identity, how electrons determine charge and ion formation, and how the combination of protons and neutrons determines atomic mass. The quiz requires students to interpret periodic table information, analyze Bohr model diagrams, perform calculations involving subatomic particles, and understand the concept of isotopes. These problems demand both factual recall and conceptual application, requiring students to connect abstract atomic theory to concrete numerical relationships and visual representations. Created by Frank Pecora, a Chemistry teacher in the US who teaches grade 8. This quiz serves as an excellent formative assessment tool to gauge student understanding before moving into more advanced topics like chemical bonding and reactions. Teachers can deploy this assessment as a unit review before summative testing, use individual questions as warm-up activities to reinforce daily lessons, or assign it as homework to solidify classroom learning. The progression from basic particle identification to complex ion and isotope analysis makes it ideal for spiraled review throughout an atomic structure unit. The visual elements requiring interpretation of Bohr models and periodic table data align perfectly with NGSS standard MS-PS1-1, which requires students to develop models describing atomic composition, and supports the crosscutting concept of structure and function that underlies all chemistry learning at this level.
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
all matter is made of what
molecules
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The positive particles of an atom are
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
the central region of an atom where its neutrons and protons are is its
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
an atom with atomic number 6 would have how many protons
Tags
NGSS.MS-PS1-1
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Particles in an atom that are neutral and have no charge are
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
A particle that moves around the nucleus is a(n)...
Tags
NGSS.MS-PS1-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the 1.00794 stand for?
mass number
atomic number
average atomic mass
number of protons
Tags
NGSS.MS-PS1-1
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