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PSC Unit 3: Atoms Flashcards | StudBud
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PSC Unit 3: Atoms
PSC Unit 3: Atoms
20 terms
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StudBud Administration
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Atoms, Atomic Structure, Scientists
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
The positive charge is located
in the center (nucleus)
throughout the atom
outside of the nucleus
2
What is the charge of an electron?
+
-
0
3
Astatine-210.....what does the 210 mean?
Atomic Number
Number of Protons
Number of Neutrons
Mass number
4
atoms with the same number of protons, but different numbers of neutrons in the nucleus.
isotope
ion
atomic mass
atomic mass
5
Which of the following is unique for each element
protons
neutrons
mass
6
The energy levels (or orbitals) hold what?
Neutrons
Protons
Electrons
7
Who discovered that there was a nucleus?
JJ Thompson
Democritis
Rutherford
8
What is the charge of a proton?
-
0
+
9
The atomic number is the total number of ___ in the nucleus.
neutrons
electrons
protons
10
The total number of protons and neutrons in the nucleus of an atom
Ion
Isotope
Mass number
Atomic number
11
Isotopes of the same element have different
cookies
neutrons
protons
electrons
12
Democritus thought that matter was tiny particles that...
was made of fire and water
That could not be divided
that were squares
13
What is the Atomic number for Arsenic?
42
33
75
14
Who had the original idea (theory) that an atom existed? Even though nobody believed him...
Democritus
JJ Thompson
Chadwick
15
Where is the mass of an atom found?
In the electron cloud
The whole atom
The nucleus
16
How many protons does Manganese (Mn) have?
12
25
55
17
Ions of the same element have different
electrons
protons
clouds
neutrons
18
What is the charge of a neutron?
+
-
0
19
How many protons does Manganese (Mn) have?
25
12
55
20
How many protons does Nickel-59 have?
28
31
59
