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- 1. Multiple Choice
Atoms tend to gain, lose, or share electrons in
order to acquire how many valence electrons?
7
1
2
8
- 2. Multiple Choice
Moving left to right within a period, first
ionization energy ______.
decreases
increases
increases, then decreases
stays the same
- 3. Multiple Choice
Moving down within a group, atomic radius
generally ______.
stays the same
increases
decreases
decrease, then increase
- 4. Multiple Choice
Moving left to right within a period, atomic
radius generally ______.
increases
stays the same
decreases
increase, then decrease
- 5. Multiple Choice
How is the radius of a metal atom measured?
the distance between two adjacent atoms
in a crystal lattice
the distance between two identical atoms
in a molecule
one-half the distance between two
adjacent atoms in a crystal lattice
one-half the distance between two
identical atoms in a molecule
- 6. Multiple Choice
Silicon and germanium are examples of ______.
alkali metals
metalloids
nonmetals
halogens
- 7. Multiple Choice
Where are the representative elements found
on the periodic table?
in the top 2 rows
in the bottom 2 rows
in groups 1, 2, and 13−18
in groups 3−12
- 8. Multiple Choice
Which term refers to columns on the periodic
table?
elements
groups
periods
series
- 9. Multiple Choice
Which term refers to rows on the periodic
table?
elements
groups
periods
series
- 10. Multiple Choice
Who first recognized that arranging elements
according to atomic number results in a clear
periodic pattern?
Antoine Lavoisier
Antoine Lavoisier
Dmitri Mendeleev
Henry Moseley
- 11. Multiple Choice
What consists of elements with one valence
electron?
group 3
period 3
group 1
group 2
- 12. Multiple Choice
For elements in groups 13-18, the number of valence electrons is_____.
equal to their group
ten less than their group number
unrelated to their group number
ten more than their group number
- 13. Multiple Choice
In which block is group 17 on the periodic table?
the s-block
the p-block
the d-block
the f-block
- 14. Multiple Choice
Which block on the periodic table has the most elements?
the s-block
the p-block
the d-block
the f-block
- 15. Multiple Choice
Which of the following is NOT true about the Heisenberg uncertainty principle?
It is impossible to assign fixed paths for electrons
It is impossible to know precisely both the velocity and the position of a particle at the same time
It is possible to know the probability for an electron to occupy a certain region around the nucleus
It is possible to know precisely both the velocity and the position of a particle at the same time
- 16. Multiple Choice
What is the name of the atomic model that treats electrons as waves?
Bohr's model
Heisenberg's model
particle mechanical model
quantum mechanical model of the atom
- 17. Multiple Choice
How many sublevels does principal energy level 3 consist of?
1
2
3
4
- 18. Multiple Choice
Which them refers to the conclusion that it os fundamentally impossible to know precisely both the velocity and the position of a particle at the same time?
Planck's effect
de Broglie principle
Heisenberg uncertainty principle
Schrodinger principle
- 19. Multiple Choice
What is the lowest allowable energy state of an atom called?
excited state
quantum state
ground state
atomic orbital
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