What is the atomic number of an element?
8th grade Periodic table

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Chemistry
•
7th - 8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The atomic number is the number of protons in the nucleus of an atom.
2.
FLASHCARD QUESTION
Front
What is the mass number of an element?
Back
The mass number is the total number of protons and neutrons in the nucleus of an atom.
3.
FLASHCARD QUESTION
Front
What are protons?
Back
Protons are positively charged particles found in the nucleus of an atom.
4.
FLASHCARD QUESTION
Front
What are neutrons?
Back
Neutrons are neutral particles found in the nucleus of an atom.
5.
FLASHCARD QUESTION
Front
What are electrons?
Back
Electrons are negatively charged particles that orbit the nucleus of an atom.
6.
FLASHCARD QUESTION
Front
How are elements arranged in the modern periodic table?
Back
Elements are arranged by increasing atomic number.
7.
FLASHCARD QUESTION
Front
What is a group in the periodic table?
Back
A group is a column in the periodic table that contains elements with similar properties.
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