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Chem Fall 2023 Make Up Midterm
By Anne Elizabeth Franck
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Last updated over 1 year ago
30 questions
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Question 1
1.
How many valence electrons does Calcium (Ca) have?
5
2
7
1
Question 2
2.
Which of these elements has six valence electrons?
Boron
Carbon
Oxygen
Sodium
Question 3
3.
Nitrogen will ____________ to make an ion
lose three electrons
gain three electron
lose five electrons
lose three electrons
Question 4
4.
Name an element that makes +2 ions.
Helium
Sulfur
Potassium
Magnesium
Question 5
5.
What charge ion does aluminum make?
-2
+3
+2
-3
Question 6
6.
Which of the following will produce a cation?
Chlorine
Sulfur
Carbon
Lithium
Question 7
7.
Why doesn't neon make ions?
Because it is a gas
Because it has 10 valence electrons
Because it has a full shell of valence electrons
Because it is a metal
Question 8
8.
True or False: Metals form anions
True
False
Question 9
9.
Which of the alkaline earth metals will has the largest electronegativity?
Magnesium
Radium
Barium
Calcium
Question 10
10.
Which of the following elements has the largest atomic radius?
Silicon
Potassium
Helium
Boron
Question 11
11.
Which of these halogens has the smallest ionization energy?
Fluorine
Bromine
Chlorine
Iodine
Question 12
12.
How many electrons does a neutral chlorine atom have?
17
18
8
35
Question 13
13.
An atom has a mass number of 48 and a atomic number of 22. Â What element is it?
Cadmium
Sodium
Titanium
Gallium
Question 14
14.
An atom has 7 protons, 7 electrons, and 8 neutrons. Â What is its mass number?
8
15
14
7
Question 15
15.
An atom has 27 protons, 27 electrons, and 28 neutrons. Â What element is it?
Aluminum
Nickel
Cesium
Cobalt
Question 16
16.
Which of the following elements is a metalloid?
Carbon
Arsenic
Tin
Aluminum
Question 17
17.
What is NOT true of the halogens?
They are highly reactive.
Some of them are gases.
They combine with alkali metals to make salts,
They are metals.
Question 18
18.
Who developed the first atomic theory by building on the research of Antoine Lavoisier and Joseph Proust?
Dmitri Mendeleev
JJ Thomson
Neils Bohr
John Dalton
Question 19
19.
What did JJ Thomson’s experiments lead him to believe the atom was most like?
The solar system
A billiard ball
Plum pudding
A football field
Question 20
20.
How many neutrons does Copper-63 have?
63
29
34
92
Question 21
21.
What atom has 12 protons?
Carbon
Magnesium
Lithium
Sodium
Question 22
22.
What particle has the least mass?
Proton
Neutron
Electron
Nucleus
Question 23
23.
Which of these elements is a halogen?
Lithium
Bromine
Argon
Calcium
Question 24
24.
What group is magnesium in?
Alkali Metals
Noble Gases
Halogens
Alkaline Earth Metals
Question 25
25.
Which of the following is a property of non-metals?
They are malleable.
They are good conductors.
They are shiny.
They are brittle.
Question 26
26.
Which statement correctly describes a solid in a container?
Takes the shape and volume of a container
Maintains volume, but takes the shape of the container
Maintains shape, but takes the volume of the container
Maintains shape and volume
Question 27
27.
Which of the following are incompressible?
Liquids and Gases
Just Gases
Gases and Solids
Solids and Liquids
Question 28
28.
What is it called when a gas becomes a liquid?
Deposition
Sublimation
Condensation
Evaporation
Question 29
29.
Which of the following is a chemical change?
Sugar dissolving in water
A piece of paper ripped in half
Water freezing
A log burning
Question 30
30.
Which of the following is a homogenous mixture?
Salt water
Carbon dioxide
Oxygen
A taco