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Honors Midterm Review
What is the unit for mass?
Density = mass / volume
Honors Midterm Review
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Answers
1
Density = mass / volume
True
False
2
What is the unit for mass?
meters
grams
seconds
liters
3
What elements are in H
2
SO
4
Helium, Silicon, Oxygen
Hydrogen, Sulfur, Oxygen
Hydrogen, Helium, Oxygen
Helium, Strontium, Oxygen
4
What is 239 K in Celcius?
-61
93
34
-34
5
A ____ has the same number of protons but a diff. number of neutrons
nucleus
atom
isotope
6
How many electrons can fit in a
d
orbital
3
14
10
5
7
Nitrogen has 2 isotopes, Nitrogen-14 and Nitrogen-15. Which of the two is more abundant fi the Atomic Mass is 14.007?
Nitrogen-14
Nitrogen-15
8
Noble Gases are in group 8A
False
True
9
Which has three significant figures?
0.007
7088
0.080
7.20
10
What is the mass number of Carbon-12 if it has 6 protons?
12
13
14
11
Group 1A has
Halogens
Alkaline earth metals
Noble Gases
Alkali metals
12
What did Rutherford do?
Used the Cathode Ray to discover the presence of electrons in the atom
Discovered that the atom was mostly empty space with a positive nucleus
Made atomic theory
discovered electrons
13
How many orbitals does a d block have?
5
14
10
3
14
Which of the following is FALSE
electrons have a mass of 1 amu
electrons are negative
the nucleus of an atom is positive
neutrons are in the nucleus of an atom
15
John Dalton is responsible for
Atomic Theory
Discovering electrons
DIscovering a nucleus
16
What comes next? 1s,2s,2p,3s,3p
3d
3f
4s
2d
17
Density = Mass x Volume
False
True
18
Despite what Atomic Theory states, atoms are divisible
False
True
19
Electrons are found in the nucleus
False
True
20
The metric system(stairs) is organized my multiples of
10
100
20
5
21
Halogens are in group 7A
False
True
