Question 1

Question

A student looks up an element on the periodic table. The table says that the atomic number of the element is 12 and the mass number of the element is 40. What information do these two numbers convey about the element?

a
The element has 40 protons and 12 neutrons
b
The element has 12 protons and 12 neutrons
c
The element has 12 protons and has 28 neutrons
d
The element has 28 protons and 40 neutrons
Question 2
How many maximum electrons can fit in the second energy level of an atom?

a
8
b
2
c
4
d
6
Question 3
In order for an atom to be considered "neutral", which of the following must be true?

a
The number of protons and neutrons must be the same
b
The number of protons and electrons must be the same
c
There are more protons than electrons
d
There are more neutrons than protons
Question 4
The chemical formula of table salt, NaCl, tells us what about the atomic bonding of this molecule?

a
The Sodium (Na) has to be present before the Chlorine (Cl)
b
The structure of the Sodium (Na) and the Chlorine (Cl) is a triangle
c
Exactly 1 atom of Sodium (Na) is bonded with 1 atom of Chlorine (Cl)
d
Nothing can be determined without a visual guide first
Question 5
In all elements in a group, the thing that is the same is the:

a
Number of electrons in the valence shell
b
Number of electrons
c
Number of protons
d
Number of neutrons
Question 6
Match the following groups with their descriptions

Column A
1.
Halogens:
Halogens
2.
Alkali Metals:
Alkali Metals
3.
Alkali Earth Metals:
Alkali Earth Metals
4.
Noble Gases:
Noble Gases
Column B
a.Group number 1, very reactive
b.Group number 7, very reactive
c.Inert. Do not react with anything
d.Reactive, but not the most reactive
Question 7
The modern day periodic table is organized by what?

a
Number of Neutrons
b
Number of Protons
c
Number of Electrons
Question 8
Two of most unique elements on the periodic table are hydrogen and helium. What makes them so unique and removed from the other groups on the periodic table?

a
Unlike all other elements, hydrogen and helium are gases
b
Unlike all other elements, hydrogen and helium are not considered metals
c
Unlike all other elements, hydrogen and helium only have a maximum of 2 valence electrons
d
Unlike all other elements, hydrogen and helium have very limited properties
Question 9
The periodic table groups elements into which of the following three categories?

a
Solids, Liquids, Gases
b
Heavy, Light, Medium
c
Dense, Expanded, Compressed
d
Metals, Nonmetals, Metalloids
Question 10
Which of the following are most likely to form a stable ionic bond

a
Carbon (Period IVA) and Oxygen (Period VIA)
b
Lithium (Period IA) and Fluorine (Period VIIA)
c
Magnesium (Period IIA) and Iron (Period VIIIB)
d
Potassium (Period IA) and Tin (Period IVA)
Question 11
Which of the following must happen in order for atoms to bond either ionically or covalently with one another?

a
The valence shells of all atoms must be filled after the bonding occurs
b
The chemical properties of the atoms must be satisfied
c
The ions must have different charges
d
The resulting compound must follow ionic naming conventions
Question 12
Geoffrey has the atoms of an unknown element. His experiment concludes that these atoms are electrically neutral. What is the only thing he can say for certain about the atomic structure of the element with this information?

a
The number of protons and the number of electrons are the same
b
The object belongs in the period IIVA
c
The atomic number and the atomic mass are the same
d
The number of protons and the number of neutrons are the same
Question 13
How many valence electrons are in the element, oxygen?

a
2
b
3
c
4
d
6
Question 14
What trend on the Periodic Table is a measure of how strongly atoms attract bonding electrons to themselves?

a
atomic radius
b
electronegativity
c
density
d
ionization energy
Question 15
A bond between sodium (Na) and chlorine (Cl) is what type of bond?

a
hydrogen
b
ionic
c
metallic
d
covalent
Question 16
Ionic compounds are highly conductive when dissolved in water.

True
False
Question 17
What two subatomic particles have the greatest mass?

a
protons and neutrons
b
protons and electrons
c
neutrons and electrons
Question 18
What atom does the electron shell model below represent?



a
Phosphorus
b
Aluminum
c
Indium
d
Arsenic
Question 19
Which pair of elements listed below would NOT form a covalent bond?

a
C and H
b
S and O
c
K and Cl
d
N and O
Question 20
Match the following elements to the number of valence electrons they would have.

Column A
1.
Na (sodium):
Na (sodium)
2.
Mg (magnesium):
Mg (magnesium)
3.
O (oxygen):
O (oxygen)
4.
N (nitrogen):
N (nitrogen)
5.
Cl (chlorine):
Cl (chlorine)
6.
Ne (neon):
Ne (neon)
7.
C (carbon):
C (carbon)
8.
Al (aluminum):
Al (aluminum)
Column B
a.2
b.3
c.4
d.7
e.6
f.8
g.5
h.1
Question 21
Nitrogen is in group 15. What is the charge of a nitrogen ion?

a
-3
b
+1
c
-2
d
+3
Question 22
Match the molecule or compound to the type of bond found between the elements.

Column A
1.
NaCl:
NaCl
2.
MgBr2

:
MgBr2

3.
CO2

:
CO2

4.
SO2

:
SO2

Column B
a.covalent bond
b.ionic bond
Question 23
Using what you know about the trend of electronegativity on the periodic table, which of the following elements would be the most electronegative?

a
Neon
b
Fluorine
c
Calcium
d
Iron
Question 24
Match the part of an atom to its description.

Column A
1.
proton:
proton
2.
neutron:
neutron
3.
electron:
electron
4.
nucleus:
nucleus
5.
electron cloud:
electron cloud
Column B
a.the area of the atom where positive particles and neutral particles are found
b.negatively charged particle
c.neutral particle
d.positively charged particle
e.the area of the atom where negatively charged particles are found
Question 25
Match the group to the type of ions they form

Column A
1.
Group 1A:
Group 1A
2.
Group 2A:
Group 2A
3.
Group 3A:
Group 3A
4.
Group 4A:
Group 4A
5.
Group 5A:
Group 5A
6.
Group 6A:
Group 6A
7.
Group 7A:
Group 7A
8.
Group 8A:
Group 8A
Column B
a.+2
b.-1
c.+3
d.+4/-4
e.0
f.-3
g.-2
h.+1
Question 26
Match the part of the diagram to its correct label.



Column A
1.
W:
W
2.
X:
X
3.
Y:
Y
4.
Z:
Z
Column B
a.Electron
b.Proton
c.Nucleus
d.Neutron
Question 27
Why does the chloride ion have a -1 charge?

a
Chlorine atoms gain an electron.
b
Chlorine atoms have no electrons.
c
Chlorine atoms share electrons.
d
Chlorine atoms lose an electron.
Question 28
A student looks up an element on the periodic table. The table says that the atomic number of the element is 12 and the mass number of the element is 40. What information do these two numbers convey about the element?

a
The element has 40 protons and 12 neutrons
b
The element has 12 protons and 12 neutrons
c
The element has 12 protons and has 28 neutrons
d
The element has 28 protons and 40 neutrons
Question 29
In all elements in a group, the thing that is the same is the:

a
Number of electrons in the valence shell
b
Number of electrons
c
Number of protons
d
Number of neutrons
Question 30
Before taking the Unit 2: Atomic Structure Test, you were asked to review resources from the Unit 2: Atomic Structure Resource Guide.

Below, list the two resources you reviewed and one thing you learned from each. At least two sentences per resource for your explanation.

Your answer:
Question 31
When you have completed a Sample Work with a grade of 70% or higher, what should you do?

a
Do a dance and continue working in Connexus
b
Wait until the end of the semester to complete all sample works
c
There are not any sample works in Physical Science
d
Submit a screenshot of the score and submit it to the dropbox in Connexus
Question 32
Where can you find guided notes to help you go through the lessons in Connexus?

a
Message Board
b
Syllabus
c
Connexus
Question 33
If you get a month behind, you won't lose any points for your work.

a
True
b
False

Answer 1

Here are the answers to your questions:

Question 1: c. The element has 12 protons and has 28 neutrons

Question 2: a. 8

Question 3: b. The number of protons and electrons must be the same

Question 4: c. Exactly 1 atom of Sodium (Na) is bonded with 1 atom of Chlorine (Cl)

Question 5: a. Number of electrons in the valence shell

Question 6:

1. b. Group number 7, very reactive (Halogens)
2. a. Group number 1, very reactive (Alkali Metals)
3. d. Reactive, but not the most reactive (Alkali Earth Metals)
4. c. Inert. Do not react with anything (Noble Gases)

Question 7: b. Number of Protons

Question 8: c. Unlike all other elements, hydrogen and helium only have a maximum of 2 valence electrons

Question 9: d. Metals, Nonmetals, Metalloids

Question 10: b. Lithium (Period IA) and Fluorine (Period VIIA)

Question 11: a. The valence shells of all atoms must be filled after the bonding occurs

Question 12: a. The number of protons and the number of electrons are the same

Question 13: d. 6

Question 14: b. electronegativity

Question 15: b. ionic

Question 16: True

Question 17: a. protons and neutrons

Question 18: (This question lacks an image; I cannot determine the correct answer without that)

Question 19: c. K and Cl

Question 20:

1. h. 1
2. a. 2
3. e. 6
4. b. 3
5. d. 7
6. f. 8
7. c. 4
8. g. 3

Question 21: a. -3

Question 22:

1. b. ionic bond (NaCl)
2. b. ionic bond (MgBr2)
3. a. covalent bond (CO2)
4. a. covalent bond (SO2)

Question 23: b. Fluorine

Question 24:

1. d. positively charged particle
2. c. neutral particle
3. b. negatively charged particle
4. a. the area of the atom where positive particles and neutral particles are found
5. e. the area of the atom where negatively charged particles are found

Question 25:

1. h. +1 (Group 1A)
2. a. +2 (Group 2A)
3. c. +3 (Group 3A)
4. d. +4/-4 (Group 4A)
5. f. -3 (Group 5A)
6. g. -2 (Group 6A)
7. b. -1 (Group 7A)
8. e. 0 (Group 8A)

Question 26: (This question lacks an image; I cannot determine the correct answer without that)

Question 27: a. Chlorine atoms gain an electron.

Question 28: (Duplicate of Question 1) c. The element has 12 protons and has 28 neutrons

Question 29: (Duplicate of Question 5) a. Number of electrons in the valence shell

Question 30: Your answer will depend on the specific resources you've reviewed; it generally should mention the resources and what specific insight or fact you found useful in your studies.

Question 31: d. Submit a screenshot of the score and submit it to the dropbox in Connexus

Question 32: c. Connexus

Question 33: b. False

Feel free to follow up if you have any specific questions about the answers!