Transcript Document
WHSAD
Mr. Quinn and Ms. Tom
10/25/13
1.
2.
3.
4.
An orbital is defined as a region of the most
probable location of
an electron
a neutron
a nucleus
a proton
1.
2.
3.
4.
Which phrase describes an atom?
a positively charged electron cloud surrounding a
positively charged nucleus
a positively charged electron cloud surrounding a
negatively charged nucleus
a negatively charged electron cloud surrounding a
positively charged nucleus
a negatively charged electron cloud surrounding a
negatively charged nucleus
1.
2.
3.
4.
Which statement
radiation?
It has a mass of
It has a mass of
It has a mass of
It has a mass of
best describes gamma
1
0
0
4
and
and
and
and
a
a
a
a
charge
charge
charge
charge
of
of
of
of
1.
–1.
0.
+2.
1.
2.
3.
4.
Which statement about one atom of an
element identifies the element?
The atom has 1 proton.
The atom has 2 neutrons.
The sum of the number of protons and
neutrons in the atom is 3.
The difference between the number of
neutrons and protons in the atom is 1.
1.
2.
3.
4.
Which elements are present in this
mixture?
E and D, only
E and G, only
D and G, only
D, E, and G
1.
2.
3.
4.
Which group of atomic models is listed in
historical order from the earliest to the
most recent?
hard-sphere model, wave-mechanical
model, electron-shell model
hard-sphere model, electron-shell model,
wave-mechanical model
electron-shell model, wave-mechanical
model, hard-sphere model
electron-shell model, hard-sphere model,
wave-mechanical model
1.
2.
3.
4.
Radiation is spontaneously emitted from
hydrogen-3 nuclei, but radiation is not
spontaneously emitted from hydrogen-1
nuclei or hydrogen-2 nuclei. Which
hydrogen nuclei are stable?
nuclei of H-1 and H-2, only
nuclei of H-1 and H-3 only
nuclei of H-2 and H-3 only
nuclei from H-1, H-2, and H-3
1.
2.
3.
4.
What is the charge of the nucleus of an
oxygen atom?
0
–2
+8
+16
1.
2.
3.
4.
Which atom in the ground state has an
outermost electron with the most energy?
Cs
K
Li
Na
1.
2.
3.
4.
What is the total number of orbitals
containing only one electron in an atom of
nitrogen in the ground state?
1
2
3
4
1
2
3
4
1.
2.
3.
4.
As a result of the gold foil experiment, it was
concluded that an atom
contains protons, neutrons, and electrons
contains a small, dense nucleus
has positrons and orbitals
is a hard, indivisible sphere
1.
2.
3.
4.
Which electron configuration represents an
atom of aluminum in an excited state?
2-7-4
2-7-7
2-8-3
2-8-6
1.
2.
3.
4.
What is the total number of sublevels that
contain electrons in the third principal energy
level of a nickel atom in the ground state?
1
2
3
4
1.
2.
3.
4.
After decaying for 48 hours, 1/16 of the
original mass of a radioisotope sample
remains unchanged. What is the half-life of
this radioisotope?
3.0 h
9.6 h
12 h
24 h
1.
2.
3.
4.
Atom X and atom Z are isotopes of the element
aluminum
Carbon
Magnesium
nitrogen
1.
2.
3.
4.
Which atom in the ground state has a partially
filled second electron shell?
hydrogen atom
lithium atom
potassium atom
sodium atom
1.
2.
3.
4.
An electron will emit energy in quanta when
its energy state changes from 4p to
5s
5p
3s
6p
1.
2.
3.
4.
An original sample of the radioisotope fluorine-21
had a mass of 80.0 milligrams. Only 20.0
milligrams of this original sample remain
unchanged after 8.32 seconds. What is the half-life
of fluorine-21?
1.04s
2.08s
4.16s
8.3s
1.
2.
3.
4.
The nucleus of an atom of cobalt-58 contains
27 protons and 31 neutrons
27 protons and 32 neutrons
59 protons and 60 neutrons
60 protons and 60 neutrons