An unstable nucleus loses the most mass if the nucleus emits _____.
Atomic Structure & Nuclear Chemistry Review

Quiz
•
Science, Physics, Chemistry
•
8th Grade - University
•
Hard
Alain Harvey
Used 31+ times
FREE Resource
50 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
an alpha particle
a beta particle
a gamma ray
a neutron
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Magnesium has three naturally occurring isotopes in different percent abundance, Mg–24, Mg–25, and Mg–26. Which of the following isotopes would you expect to have the highest percent abundance?
Mg-24
Mg-25
Mg-26
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vanadium comprises two isotopes and has an average atomic mass of 50.9415 amu. V-51 has an abundance of 97%. What is the identity and percent abundance of vanadium’s other isotope?
V-49, with an abundance of 3.0%
V-50, with an abundance of 3.0%
V-48, with an abundance of 5.0%
V-47, with an abundance of 6.0%
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which set of atoms is in the correct order of increasing atomic radii?
Rb < Na < Li
Cl < P < S
He < Ne < Ar
F < As < Ba
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which grouping of circles, when considered in order from the top to the bottom, best represents the relative size of the atoms of Li, Na, K and Rb, respectively?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The table gives information about the nucleus of each of the four atoms. How many different elements are represented by the nuclei in the table?
1
2
3
4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An increase in atomic number is related to an increase in atomic mass because:
more electrons are present in the atomic nucleus.
more electrons are orbiting the atomic nucleus.
more protons are present in the atomic nucleus.
more protons are orbiting the atomic nucleus.
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