
Isotopes and Radioactive Decay

Flashcard
•
Science
•
8th Grade
•
Hard

Tiffany Lester
FREE Resource
Student preview

20 questions
Show all answers
1.
FLASHCARD QUESTION
Front
Ion
Back
An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
2.
FLASHCARD QUESTION
Front
Isotope
Back
Variants of a particular chemical element that have the same number of protons but different numbers of neutrons.
3.
FLASHCARD QUESTION
Front
Radioactive Decay
Back
The process by which an unstable atomic nucleus loses energy by emitting radiation.
4.
FLASHCARD QUESTION
Front
Half-life
Back
The time required for half of the radioactive atoms in a sample to decay.
5.
FLASHCARD QUESTION
Front
Specific Heat
Back
The amount of heat required to raise the temperature of one gram of a substance by one degree Celsius.
6.
FLASHCARD QUESTION
Front
True or False: Ions are always positively charged.
Back
False. Ions can be positively or negatively charged.
7.
FLASHCARD QUESTION
Front
True or False: Isotopes have different atomic numbers.
Back
False. Isotopes have the same atomic number but different mass numbers.
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