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Atoms and Elements
Atoms and Elements
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Introduction to atomic structure and the Periodic Table of Elements
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
Which letter refers to the protons in this atom?
a.
d.
c.
b.
2
What two qualities does an element have to possess in order to be classified as a nonmetal?
shiny and poor conductor
shiny and good conductor
dull and poor conductor
dull and good conductor
3
A pure substance is.....?
an element only
something that can't be broken down by phys or chem means
a substance in which there is only one type of particle
a mixture of different ingredients
4
The atomic number always tells you what important piece of information?
the number of protons found in the nucleus
the number of neutrons found in the nucleus
the number of atoms found in the nucleus
the number of electrons found in the nucleus
5
Which SI unit would be most appropriate to measure the mass of sub-atomic particles in an atom?
psi
amu
atm
bmi
6
The maximum capacity of the first energy level of an atom is
32 electrons
18 electrons
2 electrons
8 electrons
7
Which of the following properties is the best example of a characteristic property?
weight
density
mass
volume
8
Which letter refers to the negatively charged particles?
a.
c.
b.
d.
9
The smallest particle into which an element can be divided and still maintain its identity is
an electron
a nucleus
a neutron
an atom
10
What kind of particles are contained in the nucleus?
electrons
protons and electrons
neutrons
protons and neutrons
11
How would you describe the charge of the nucleus?
no charge at all
positively charged
negatively charged
neutrally charged
12
How many neutrons does an atom of hydrogen contain?
2.008
0
2
1
13
Where are electrons likely to be found in an atom?
With the neutrons
Mixed throughout the atom
In the nucleus
In clouds around the nucleus
14
An atom of iron with 26 protons, 26 electrons, and 30 neutrons would have a mass number of
56
26
52
4
15
The maximum capacity of the second energy level of an atom is
32 electrons
18 electrons
8 electrons
2 electrons
16
The maximum capacity of the third energy level of an atom is
2 electrons
18 electrons
8 electrons
32 electrons
17
How many protons does an atom of potassium contain?
20
39
19
58
18
How many neutrons does an atom of potassium contain?
58
19
39
20
19
How many neutrons does an atom of neon contain?
20
5
30
10
20
Which letter refers to the particles with no charge?
a.
d.
c.
b.
