

Understanding Atomic Structure and Isotopes
Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the periodic table organize elements by?
Chemical reactivity
Alphabetical order
Increasing atomic number
Decreasing atomic mass
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the atomic number of an element represent?
Number of neutrons
Number of electrons
Number of isotopes
Number of protons
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the chemical symbol for an element typically formatted?
Two capital letters
Two lowercase letters
One capital letter
One capital letter followed by a lowercase letter
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the atomic mass of an element?
The mass of the most common isotope
The weighted average mass of isotopes
The sum of protons and electrons
The mass of a single atom
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are isotopes?
Atoms with the same number of protons but different neutrons
Atoms with different numbers of electrons
Atoms with different numbers of protons
Atoms with the same number of neutrons but different protons
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the atomic mass of boron calculated?
By averaging the mass of all boron atoms
By adding the number of protons and electrons
By calculating the weighted average of its isotopes
By using the mass of the most common isotope
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the mass number of an isotope?
The number of neutrons only
The number of protons only
The total number of electrons
The total number of protons and neutrons
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