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Atoms and The Periodic Table Flashcards | StudBud
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Atoms and The Periodic Table
Atoms and The Periodic Table
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9th grade Physical Science atoms and periodic table review
Flashcards
22 cards
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Practice quiz
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Questions
22
Answers
1
How many electrons does an atom of
carbon
contain?
3
18
6
12
2
What does the atomic number tell you?
Sum of protons and electrons
Number of protons and also neutrons (in neutral atom)
Sum of protons and neutrons
Number of protons and also electrons (in neutral atom)
3
What are the three subatomic particles?
Protons, neutrons, and electrons
Protons, neutrons, and isotopes
Positrons, neutrons, and electrons
Protons, negatrons, and electrons
4
A proton has a __________ charge.
Negative
Subatomic
Positive
Neutral
5
If atomic number changes...
the atom is an isotope.
electrons are added or taken away.
neutrons are added or taken away.
the identity of the atom changes.
6
Sulfur-34 (S-34). How many protons?
32
34
16
18
7
Atomic #12, Mass #24, No charge. How many protons does this atom have?
12
6
24
36
8
Chlorine (Cl). How many electrons?
35
18
52
17
9
What does the mass number tell you?
Number of protons and also electrons (in neutral atom)
Number of protons and also neutrons (in neutral atom)
Sum of protons and neutrons
Sum of protons and electrons
10
Isotopes of an atom have different...
Energy levels
Mass numbers
Atomic numbers
Charges
11
A Bohr model has two energy levels, with 5 electrons on the second level. What element is it?
Nitrogen (N)
Manganese (Mn)
Boron (B)
Helium (He)
12
Where are electrons are located?
Nucleus
Electrolus
Electron covering
Electron cloud
13
A Bohr model has only 4 energy levels. This element is NOT...
Cobalt (Co)
Cadmium (Cd)
Calcium (Ca)
Copper (Cu)
14
How many electron orbitals are in the
second
energy level?
4
1
8
2
15
Which of the following has the smallest mass?
Protons and Neutrons
Electrons
Neutrons
Protons
16
Neon (Ne). How many neutrons?
20
10
30
7
17
The number given in the name of an isotope tells you...
Atomic number
# Neutrons
Mass number
Charge
18
Mass # - Atomic # =
# Neutrons
Charge
# Protons
# Electrons
19
Which element has atoms with 20 protons?
Calcium
Aluminum
Potassium
Neon
20
How many energy levels does nickel (Ni) have?
4
1
3
2
21
Where are neutrons located?
Outside the nucleus
Electron cloud
Inside the nucleus
Neutron cloud
22
What is the most abundant element on Earth?
Nitrogen
Oxygen
Carbon
Hydrogen
