1 Which element contains 21 protons?

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1
Which element contains 21 protons?
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2
Which element contains 11 protons?
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3
Which element contains 104 protons?
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4
How many protons are in Carbon?
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5
How many protons are in Tungsten?
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6
How many protons are in Indium?
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7
Which element contains 35 protons?
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8
Which element contains 19 protons?
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9
Which element contains 84 protons?
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10
How many protons are in Magnesium?
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11
How many protons are in Gold?
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12
How many protons are in Silver?
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13
For the following isotope:
144
X
Sm
A What is the atomic number?
B
What is the mass number?
Solve for how many of each of the following a single atom
C of the above isotope has
i. Protons:
ii. Neutrons:
iii. Electrons:
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14
For the following isotope:
31
P
X
A What is the atomic number?
B
What is the mass number?
Solve for how many of each of the following a single atom
C of the above isotope has
i. Protons:
ii. Neutrons:
iii. Electrons:
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15
For the following isotope:
56
X
Fe
A What is the atomic number?
B
What is the mass number?
Solve for how many of each of the following a single atom
C of the above isotope has
i. Protons:
ii. Neutrons:
iii. Electrons:
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16
For the following isotope:
39
19
X
A What is the element’s atomic symbol?
B What is the atomic number?
C What is the mass number?
Solve for how many of each of the following a single atom
Dof the above isotope has
i. Protons:
ii. Neutrons:
iii. Electrons:
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17 For the following isotope:
33
16
X
A What is the element’s atomic symbol?
B What is the atomic number?
C What is the mass number?
Solve for how many of each of the following a single atom
Dof the above isotope has
i. Protons:
ii. Neutrons:
iii. Electrons:
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18 For the following isotope:
102
X
Ru
A What is the atomic number?
B What is the mass number?
Solve for how many of each of the following a single atom
Cof the above isotope has
i. Protons:
ii. Neutrons:
iii. Electrons:
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19 For the following isotope:
75
X
As
A What is the atomic number?
B What is the mass number?
Solve for how many of each of the following a single atom
Cof the above isotope has
i. Protons:
ii. Neutrons:
iii. Electrons:
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20 For the following isotope:
59
X
Co
A What is the atomic number?
B What is the mass number?
Solve for how many of each of the following a single atom
Cof the above isotope has
i. Protons:
ii. Neutrons:
iii. Electrons:
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21 For the following isotope:
14
6
X
A What is the element’s atomic symbol?
B What is the atomic number?
C What is the mass number?
Solve for how many of each of the following a single atom
Dof the above isotope has
i. Protons:
ii. Neutrons:
iii. Electrons:
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22 For the following isotope:
20
9
X
A What is the element’s atomic symbol?
B What is the atomic number?
C What is the mass number?
Solve for how many of each of the following a single atom
Dof the above isotope has
i. Protons:
ii. Neutrons:
iii. Electrons:
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23 Given the data below, the average atomic mass of
Mercury (Hg) is _________ amu.
Isotope
Hg-196
Hg-198
Hg-199
Hg-200
Hg-201
Hg-202
Hg-204
% Abund.
0.146%
10.01%
16.84%
23.13%
13.22%
29.81%
6.844%
Atomic Mass
195.965813
197.966760
198.968268
199.968316
200.970293
201.970632
203.973481
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24 Calculate the atomic mass of Oxygen if its
abundance in nature is:
% Abund.
99.75%
00.04%
00.21%
Atomic Mass
15.994916
16.999132
17.999153
Isotope
oxygen-16
oxygen-17
oxygen-18
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25 Given the data below, the average atomic mass of
Neon is _________ amu.
Isotope
Neon-20
Neon-21
Neon-22
% Abund.
90.62%
0.26%
9.12%
Atomic Mass
19.992439
20.993845
21.991384
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26 For the following ion:
48
Ti
22
+2
A What is the atomic number?
B
What is the mass number?
Solve for how many of each of the following a single atom
C of the above isotope has
i. Protons:
ii. Neutrons:
iii. Electrons:
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27 For the following ion:
108
Ag
47
+
A What is the atomic number?
B
What is the mass number?
Solve for how many of each of the following a single atom
C of the above isotope has
i. Protons:
ii. Neutrons:
iii. Electrons:
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28 For the following ion:
32
S
16
-2
A What is the atomic number?
B
What is the mass number?
Solve for how many of each of the following a single atom
C of the above isotope has
i. Protons:
ii. Neutrons:
iii. Electrons:
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29 For the following ion:
209
Bi
83
+5
A What is the atomic number?
B
What is the mass number?
Solve for how many of each of the following a single atom
C of the above isotope has
i. Protons:
ii. Neutrons:
iii. Electrons:
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30 For the following ion:
226
+2
Ra
88
A What is the atomic number?
B
What is the mass number?
Solve for how many of each of the following a single atom
C of the above isotope has
i. Protons:
ii. Neutrons:
iii. Electrons:
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31 For the following ion:
193
Ir
77
+3
A What is the atomic number?
B
What is the mass number?
Solve for how many of each of the following a single atom
C of the above isotope has
i. Protons:
ii. Neutrons:
iii. Electrons:
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32 For the following ion:
235
U
92
+6
A What is the atomic number?
B
What is the mass number?
Solve for how many of each of the following a single atom
C of the above isotope has
i. Protons:
ii. Neutrons:
iii. Electrons:
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33 Draw the energy level diagram for Iron.
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34 Draw the energy level diagram for Sulfur.
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35 Draw the energy level diagram for Argon
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36 Draw the energy level diagram for Neon.
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37 Using what you know about electrons and energy
levels, do you think that Sulfur will gain or lose
electrons to achieve a noble gas configuration?
Explain your answer using your energy level
diagrams.
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38 Draw the energy level diagram for Titanium.
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39 Draw the energy level diagram for Strontium.
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40 Draw the energy level diagram for Krypton.
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41 Draw the energy level diagram for Xenon.
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42 Using what you know about electrons and energy
levels, do you think that Calcium will gain or lose
electrons to achieve a noble gas configuration?
Explain your answer using your energy level
diagrams.
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43 What is the electron configuration of Iron?
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44 What is the electron configuration of Bromine?
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45 What is the electron configuration of Lithium?
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46 What is the electron configuration of Strontium?
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47 What is the electron configuration of Nickel?
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48 What is the electron configuration of Francium?
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49 What is the electron configuration in noble gas
notation of Tin?
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50 What is the electron configuration in noble gas
notation of Germanium?
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51 What is the electron configuration in noble gas
notation of Iodine?
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52 What is the electron configuration in noble gas
notation of Uranium?
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53 What is the electron configuration in noble gas
notation of Cesium?
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54 What is the electron configuration in noble gas
notation of Bismuth?
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55 What is the electron configuration in noble gas
notation of Aluminum?
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56 What is the electron configuration in noble gas
notation of Palladium?
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57 What is the electron configuration in noble gas
notation of Titanium?
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58 What is the electron configuration in noble gas
notation of Silicon?
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59 Explain why Chromium’s electron configuration is
different than that of the predicted configuration.
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60 Explain why Copper’s electron configuration is
different than that of the predicted configuration.
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61 Consider the Alkali metals
What is the ending of the electron configuration of all
A
Alkali Metals?
Based off of this electron configuration, do you think it is
B easier for Alkali Metals to gain or lose electron?
Compared to the Alkaline Earth Metals, do you think the
Alkali Metals are more or less reactive. Explain your
C answer using information about an alkali’s metals electron
configuration and energy level diagram.
Two metals are placed in water. One bubbles a bit and
corrodes. The other reacts violently and caused flames to
erupt from the surface of the water. Which metal would
D you predict is the Alkali Metal and which is the Alkaline
Earth Metal. Explain your answer.
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62 A chemical supply company has run out of
Chlorine for its customers. What other metal
could they suggest to replace Beryllium and why?
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63 Consider the Chalcogens
A
What is the ending of the electron configuration of all
Chalcogens?
Based off of this electron configuration, do you think it is
B easier for Chalcogens to gain or lose electron?
Compared to the Halogens, do you think the Chalcogens
are more or less reactive? Explain your answer using
C information about an alkali’s metals electron configuration
and energy level diagram.
Two pieces of iron are heated and placed in two separate
containers of gas. One instantly corrodes, the other
D corrodes slowly. Which gas is the Halogen and which gas
is the Chalcogen? Explain your answer.
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64 A chemical supply company has run out of
Beryllium for its customers. What other metal
could they suggest to replace Beryllium and why?

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