Alchemy Flashcard 09

Flashcard
•
Science
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the mass of an individual atom determined by?
Back
The mass of an individual atom is determined by the number of protons plus the number of neutrons.
2.
FLASHCARD QUESTION
Front
What is the atomic number of an element?
Back
The atomic number of an element is the number of protons in the nucleus of an atom.
3.
FLASHCARD QUESTION
Front
How do you calculate the atomic mass of an atom?
Back
The atomic mass of an atom is calculated by adding the number of protons and neutrons.
4.
FLASHCARD QUESTION
Front
What is the relationship between protons, neutrons, and electrons in a neutral atom?
Back
In a neutral atom, the number of protons equals the number of electrons.
5.
FLASHCARD QUESTION
Front
If an atom has 24 protons, how many electrons does it have?
Back
If an atom has 24 protons, it has 24 electrons.
6.
FLASHCARD QUESTION
Front
What is the total number of neutrons in an atom with an atomic number of 18 and a mass number of 40?
Back
The total number of neutrons is 22 (mass number - atomic number = 40 - 18).
7.
FLASHCARD QUESTION
Front
What does the atomic number indicate about an element?
Back
The atomic number indicates the identity of the element and its position in the periodic table.
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