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Chapter 17 Atoms
Flashcards
40 cards
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Practice quiz
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Host live
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Questions
40
Answers
1
What is the appropriate Lewis Dot Structure for Fluorine?
3
4
1
2
2
What is the charge of an electron?
-1
-0.11
-2
0
3
What is made up of three quarks?
a proton or neutron
an electron
3 electrons
the nucleus
4
Who was the first to say that atoms exist?
Bohr
Shrodinger
Democritus
Einstein
5
What did Rutherford discover in his experiment?
the atom is all negatively charged
it didn't work
the atom is completely solid
the atom is mostly empty space
6
How many protons are in Nickel?
31
24
12
28
7
What is the size of an electron in amu?
0
1
2
3
8
What is an isotope?
atom with different number of neutrons
atom with different number of protons and electrons
atom with different number of electrons
atom with different number of protons
9
What is the atomic number?
the number of protons in an atom
the number of positrons in an atom
the number of neutrons in an atom
the number of quarks in an atom
10
Why is most of the mass found in the nucleus?
protons and neutrons are each 1 amu and are in the nucleus
electrons weigh too much to be used for the mass
all the subatomic particles are in the nucleus
protons and electrons are each 1 amu and are in the nucleus
11
What subatomic particle did Rutherford name?
positron
proton
electron
neutron
12
What type of element usually exists as a gas?
semiconductor
metal
nonmetal
inner metal
13
How can you find out how many neutrons are in an atom?
subtract atomic number from mass number
subtract mass number from atomic number
subtract electrons from protons
subtract protons from atomic number
14
What type of element is not malleable or ductile?
metalloid
unmetal
nonmetal
metal
15
How many quarks are there in a proton?
3
1
4
2
16
What is the nucleus charged?
positrive
negatively charged
positively charged
neutral
17
What type of metal is a good conductor of heat and electricity?
noble gas
halogen
nonmetal
metal
18
Who proposed the atomic theory?
Dalton
Chadwick
Rutherford
Bohr
19
Thomson thought that the atom was
all positive
all negative
mostly positive with negative charges inside
mostly negative with some positive charges
20
The atomic number can also tell you how many of these sub particles as well...
electrizes
electrons
positrons
neutrons
21
What is the mass number?
protons + electrons
protons + neutrons
electrons + neutrons
electrons + neutrons + protons
22
What is the last statement of Dalton's Atomic Theory?
atoms combine to form molecules
an atom cannot be divided
atoms can be separated to make molecule
atoms are divisible
23
What did Chadwick discover?
protons
electrons
positrons
neutrons
24
How many electrons are in Sodium?
13
11
10
12
25
How did Mendeleev arranged the periodic table?
physical properties
electron weight
atomic number
atomic mass
26
Why is the atomic mass a decimal?
anions
ions
cations
isotopes
27
What is the charge of a neutron?
+1
0
-2
-1
28
What is one of Dalton's statements of the atomic theory?
all atoms of the same element are different
atoms are just smaller molecules
all atoms of same element are identical
all atoms of the same element have a different # of protons
29
________ are the building blocks of matter.
Protons
Electrons
Atoms
Cells
30
What is one of the statements in Dalton's atomic theory?
an atom looks like a blueberry muffin
atoms are the building blocks of life
all elements are made of atoms that are indivisible
all elements are made of atoms that are divisible
31
What does the Electron Cloud Model show?
That it is always cloudy in an atom
The locations of electrons cannot be known
The electrons are found in the nucleus
The location of electrons can be known
32
How did Moseley rearrange the periodic table?
arranged by valence electrons instead
arranged by atomic number instead
arranged by atomic mass instead
arranged by physical properties instead
33
What are the properties of a semiconductor/metalloid?
their properties are between metals and nonmetals
they act like metals
the act nothing like metals or nonmetals
they act like nonmetals
34
What type of element does not conduct heat or electricity?
nonmetal
semiconductor
metalloid
metal
35
What is the size of a neutron in amu?
2
1
3
4
36
What is the size of a proton in amu?
4
1
2
3
37
What is the charge of a proton?
+2
-1
0
+1
38
Where are the electrons in the Bohr model?
in the nucleus
in the electron cloud
stuck to the outside of the nucleus
in the fixed orbits around the nucleus
39
What is the smallest particle of matter?
quark
kwork
squark
cork
40
What experiment did Rutherford do?
gold experiment
silver-foil experiment
gold-foil experiment
tin-foil experiment
