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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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1
What is the most accurate descriptions of an isotope?
atoms with the same # of protons and neutrons
atoms with the same # of protons and electrons
atoms with the same # of protons and different # of electron
atoms with the same # of protons and different # of neutrons
2
If the mass of a proton was compared to a bowling ball, what would the mass of an electron be?
molecules
an electron cloud
a smaller bowling ball
a penny
3
What is special about the Nobel Gases?
They were easily disocovered
They will not bond because of a full outer energy level.
They are kings and queens
They are highly reactive
4
What does "atomos" mean?
atom
smallest particle of matter
not able to be divided
almost like an atom
5
What particle did good ole' J.J. Thomson discover?
Electron
Proton
Neutron
Electron Cloud
6
How many valence electrons does sodium (Na) have?
3
11
23
1
7
Two or more elements bonded together creates a.....?
compound
solid
gas
liquid
8
Which of the following equations is balanced?
NaHCO3 + H2O = NaCH3 + 4 O2
2C + 2O2 = 4 CO2
2Na + Cl2 = 2 NaCl
H2 + O2 = 2H2O
9
In which type of bond would an electron be transferred?
Ionic
Metallica
Metallic
Covalent
10
Why is Uranium used in nuclear weapons?
Its atomic number is 92
It is awesome
It is unstable and radioactive
It is a metal
11
How do you calculate atomic mass?
protons + electrons
neutrons + protons
neutrons + electrons
neutrons - protons
12
What is a row on the periodic table called?
column
group
period
row
13
Which part of John Dalton's atomic theory was proven INCORRECT?
Atoms cannot be divided
Atoms of 1 element are different from atoms of another
All matter is made of atoms
Atoms combined with each other to form new substances
14
What happens when an atoms loses one or more electrons?
becomes neutral
it becomes an isotope
becomes a positive ion
becomes a negative ion
15
Assuming this atom is neutral, which element is this?
Silicon
Carbon
Helium
Beryllium
16
What is the most important factor in determining how an atom will bond?
# of protons
# of neutrons
period
# of valence electrons
17
Most elements on Earth are....?
metalloid
non-metal
metal
pure
18
Which statement about an electron cloud is most accurate?
Electrons cause rain
It is a circle around the nucleus
It is an area around the nucleus where electrons are found
It is located inside the nucleus of an atom
19
How many neutrons are in Manganese (Mn) atomic # 25?
55
30
4
25
20
Who created the idea of atoms?
Dimitri Mendeleev
John Dalton
Democritus
Leonardo Da Vinci
21
What is the atomic symbol of the element in period 5 group 11 of the periodic table?
Gold
Silver
Ag
Rg
22
Flourine is in group 17 on the Periodic table, which element is most like Flourine?
Neon
Chlorine
Nitrogen
Oxygen
23
Dimitri Mendeleev organized the elements by
density
melting point
shape
increasing atomic mass
24
What information does an atomic number represent?
the number or protons
the number of atoms
the mass of one atom
the number of protons + neutrons
25
What is the electrical charge of a proton?
positive
neutron
negative
neutral
26
How many bonds can this atom form?
1
4
2
6
