3TSA Day10 EnTck10 Due Oct2
Authored by Eliana Bendezu Portela
Chemistry
9th - 12th Grade
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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why some isotopes are radioactive?
Because some isotopes have big nuclei, releasing some particles will reach a stable state.
Because some isotopes have small nuclei, releasing some particles will reach a stable state.
Because some isotopes have no nuclei, releasing some particles will reach a stable state.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the process of radioactive decay?
It is the process of a nucleus getting bigger.
It is the process of a nucleus emitting radiation to become more stable.
It is the process of a nucleus absorbing radiation to become more stable.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main reason for an isotope to be radioactive?
Because the isotope has an unstable nucleus.
Because the isotope has a stable nucleus.
Because the isotope has a large nucleus.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What makes an unstable nucleus in an isotope?
Imbalance between the number of protons and neutrons compared to stable isotopes
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which carbon atoms are radioisotopes?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which hydrogen atom is a radioisotope?
A) Hydrogen-1
B) Hydrogen-2
C) Hydrogen-3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which hydrogen atom is tritium?
A) Hydrogen-1
B) Hydrogen-2
C) Hydrogen-3
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