8.5A
Quiz by Jennifer Davis
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- Q1
Which subatomic particles make up the nucleus
electrons, protons, and neutrons
protons and electrons
neutrons and electrons
protons and neutrons
30s - Q2
An atom of gold has 79 protons, 79 electrons, and 119 neutrons. What is the mass of the atom?
39 amu
198 amu
197 amu
276 amu
30s - Q3
Which of the following has the least mass?
neutrons
electrons
nucleus
protons
30s - Q4
What is the most basic unit of matter?
atom
proton
molecule
cell
30s - Q5
What is used to measure the mass of the atom?
Milliliters (ml)
Grams (g)
Cubic Centimeters (cm3)
Atomic Mass Unit (AMU)
30s - Q6
An atom of vanadium has an atomic number of 23 and a mass number of 52. How many protons does it have?
75
52
23
29
30s - Q7
What are the electrons found in the outer shell of an atom called?
protons
valence electrons
nucleus
energy levels
30s - Q8
Which of the following determines the identity of an atom?
neutrons
protons
mass number
electrons
30s - Q9
What is the correct number of electrons for each energy level?
2-8-18
2-4-8
2-8-8
2-4-16
30s - Q10
An atom of Cobalt (Co) has a mass of 60 amu. How many neutrons would be found in this atom?
32
27
59
33
30s - Q11
An atom has 11 protons, 12 neutrons, and 11 electrons. What is the charge of the atom's nucleus?
0
+23
+11
-11
30s - Q12
A neutral atom of nickel has an atomic number of 28 and a mass number of 57. How many electrons are in the atom of nickel?
29
85
57
28
30s - Q13
What element is shown below?
Manganese
Neon
Helium
Magnesium
30s - Q14
What did Democritus, Thomson, Rutherford, and Bohr all have in common?
They each conducted experiments in which particles collided.
They each contributed to the development of the atomic theory.
They each identified new elements.
They each identified new isotopes of atoms.
30s - Q15
Atoms are composed of ____.
electrons and neutrons
electrons, protons, and neutrons
protons and neutrons
neutrons and electrons
30s
