Periodic Table

Flashcard
•
Science
•
7th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the atomic number of an element?
Back
The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.
2.
FLASHCARD QUESTION
Front
How can you determine the number of protons in an atom?
Back
The number of protons in an atom is equal to its atomic number.
3.
FLASHCARD QUESTION
Front
If an atom has 5 electrons and 5 protons, what is its atomic number?
Back
5
Tags
NGSS.MS-PS1-1
4.
FLASHCARD QUESTION
Front
What does the atomic number tell us about an element?
Back
It tells us the number of protons in the element.
5.
FLASHCARD QUESTION
Front
If an element has an atomic number of 11, how many protons does it have?
Back
11
6.
FLASHCARD QUESTION
Front
What is the relationship between atomic number and neutrons?
Back
The atomic number does not indicate the number of neutrons; neutrons are calculated by subtracting the atomic number from the atomic mass.
7.
FLASHCARD QUESTION
Front
How many neutrons are in Fluorine (atomic number 9, atomic mass 19)?
Back
10
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