Unit 1-Atoms, Isotopes, and Ions Assessment
Flashcard
•
Chemistry
•
9th - 12th Grade
•
Hard
Denise Trapnell
FREE Resource
Student preview
21 questions
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1.
FLASHCARD QUESTION
Front
Oxygen has atomic number 8. What does this signify?
Back
eight protons in its nucleus
2.
FLASHCARD QUESTION
Front
An isotope of chlorine has 17 protons and 19 neutrons. What is the mass number for that isotope of chlorine?
Back
36
3.
FLASHCARD QUESTION
Front
The number of protons in one atom of an element is that element's
Back
atomic number
4.
FLASHCARD QUESTION
Front
Which subatomic particle has a negative charge?
Back
electron
5.
FLASHCARD QUESTION
Front
What is the average atomic mass of an element?
Back
A weighted average of the masses of an element's isotopes
6.
FLASHCARD QUESTION
Front
Which of the following is unique for any given element?
Back
the number of protons
7.
FLASHCARD QUESTION
Front
How many electrons are in the ion shown?
Back
18
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