
Isotopes & Bohr Diagrams Flashcard
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What does a Bohr diagram represent for an atom?
Back
A Bohr diagram represents the arrangement of electrons in an atom, showing their orbits around the nucleus.
2.
FLASHCARD QUESTION
Front
What is an isotope?
Back
An isotope is a variant of a chemical element that has the same number of protons but a different number of neutrons.
Tags
NGSS.HS-PS1-8
3.
FLASHCARD QUESTION
Front
How is the mass number of an isotope calculated?
Back
The mass number is calculated by adding the number of protons and neutrons in the nucleus.
4.
FLASHCARD QUESTION
Front
What is the significance of the nucleus in an atom?
Back
The nucleus contains protons and neutrons, and it is the central part of the atom that holds most of its mass.
Tags
NGSS.HS-PS1-8
5.
FLASHCARD QUESTION
Front
How many electrons can the first energy level hold according to the Bohr model?
Back
The first energy level can hold a maximum of 2 electrons.
6.
FLASHCARD QUESTION
Front
What is the difference between the Bohr diagrams of hydrogen and helium?
Back
The Bohr diagram for hydrogen shows one electron, while the diagram for helium shows two electrons in the first energy level.
7.
FLASHCARD QUESTION
Front
What does the number below the element symbol in isotope notation represent?
Back
The number below the element symbol represents the atomic number, which is the number of protons in the nucleus.
Tags
NGSS.HS-PS1-8
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