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Parts of the Atom - Hourahan Flashcards | StudBud
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Parts of the Atom - Hourahan
Parts of the Atom - Hourahan
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1
How many types of subatomic particles are located in the nucleus?
2
3
All of Them
1
2
Which element has the symbol Ni?
Sodium
Neon
Nitrogen
Nickel
3
Neutral atoms of which element have 20 electrons?
Argon
Copper
Iron
Calcium
4
Who discovered the nucleus of the atom?
Rutherford
Thomson
Democritus
Bohr
5
Which of the following is not located in the nucleus of an atom?
Electrons
Protons
Neutrons
6
How was the electron discovered?
Gold Foil Experiment
Cathode Ray Tubes
Rolling a Marble
7
An atom has 4 protons, 4 electrons & 5 neutrons. What is the atomic number?
9
4
5
1
8
How many electrons are in an atom of Sodium-23?
12
11
22.990
23
9
What is the charge of the nucleus of an atom?
Negative
Neutral
Positive
10
Which of the following do isotopes have in common?
Number of Protons
Mass Number
Number of Neutrons
11
Which element has an average atomic mass of 32.066?
Sulfur
Phosphorus
Germanium
Sodium
12
How do you find out the number of electrons for a neutral atom?
Same as Mass Number
Average Atomic Mass - Atomic Number
Same as Atomic Number
Mass Number Minus Atomic Number
13
An atom has 4 protons, 4 electrons & 5 neutrons. What is the mass number?
1
5
9
4
14
How many protons are in an atom of Carbon-14?
14
6
0
8
15
Which of the following is the smallest?
Neutron
Nucleus
Proton
Electron
16
What is the atomic number for Iodine?
53
49
127
14
17
Which of the following is written as a decimal?
Mass Number
Average Atomic Mass
Atomic Number
18
An atom has 4 protons, 4 electrons & 5 neutrons. What element is it?
Hydrogen
Fluorine
Beryllium
Boron
19
Which part of Dalton's Atomic Theory has been proven incorrect?
Atoms are indivisible.
Atoms aren't real.
Atoms can't combine.
20
How many protons are in an atom of gold?
79
197
196.967
118
