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Chapter Three Elements Flashcards | StudBud
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Chapter Three Elements
Chapter Three Elements
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Elements on the Periodic Table
Flashcards
54 cards
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Questions
54
Answers
1
What is an atom?
largest particle
none
smallest particle
both
2
What does B stand for?
Boron
Bathium
Berillium
none
3
What are isotopes?
number of electrons and different number of neutrons
number of electrons and different number of neutrons
number of protons and different number of electrons
number of protons and different number of neutrons
4
what does amu mean
atomic matter unit
a mass units
atomic mass unit
5
What is radioactivity?
slowly emitting energy
none
never emitting energy
spontaneously emitting energy
6
What are semiconductors?
substances that sometimes conduct electricity
none
substances that conduct electricity always
substances that never conduct electricity
7
What is a tracer?
radioactive cells
radioactive parts
radioactive isotopes
all of the above
8
Which of the following is not apart of Dalton's Theory?
compounds formed when atoms of more than 1 combine in ratio
atom of an element cannot be changed by chemical reaction
atoms are different but have the same mass
All elements consist of atoms that can't be divided
9
What does Be stand for?
Berillium
Bathium
Boron
10
elements that do not ordinarily form compounds?
halogens
element in carbon family
noble gases
metals
11
Who is Marie Currie?
chemist who founded polonium
won 2 noble peace prizes
founded radium
all of the above
12
How did the Atomic Theory grow?
debates between theorists
through series of models and evidence
all of the above
discussion between scientists
13
What is radioactive decay?
both
atomic nuclei of radioactive slow moving particles/energy
atomic nuclei of radioactive fast moving particles/energy
none
14
What is half life?
none of the above
length of time needed for half the atoms to decay
length of time needed for half the atoms to grow
length of time needed for quarters of the atoms to decay
15
What does H stand for?
holmium
mercury
hydrogen
helium
16
What is electrical conductivity?
ability to carry an electric current
ability to freeze electricity
ability to melt electricity
ability to create electric current
17
Mendeleev created first periodic table by arranging elements
melting point and densities
increasing atomic number
increasing atomic mass
decreasing atomic mass
18
Who is Mendeleev?
found the first atom
founded electrons
founded protons
created first periodic table
19
Where is nuclear reactions used?
medicines
all of the above
science
nuclear energy
20
Who is John Dalton?
physist who inferred that atoms had certain characteristics
none of the above
chemist who inferred that atoms had certain characteristics
chemist who inferred that atoms had many characteristics
21
What is reactivity?
all of the above
speed that element combines with other elements
the ability to not combine
none of the above.
22
What is an atomic number?
number of neutron and electrons
number of protons
number of protons and electrons
number of protons and neutrons
23
What are groups?
rows with different characteristic
columns with similar characteristics
columns with different characteristics
rows with similar characteristics
24
What are alpha particles?
two protons gained two neutrons lost
three protons lost three neutrons gained
none of the above
one proton lost one neutron lost
25
What are gamma rays?
high energy waves
none
low energy waves
both
26
What is energy level?
amount of energy electron has
amount of energy an electron wants
amount of energy for protons
amount of energy for neutrons
27
What is a nuclear reaction?
both
involving with splitting or fusing particles
breaking and shattering particles
none
28
What are halogens?
salt forming
all of the above
water forming
sugar forming
29
What are periods on the periodic table?
rows
none
both
columns
30
What is Bohr's Model?
none
electron exist around atoms
electrons are found in a specific orbit around a nucleus
both
31
In rutherford's experiment, positive particles pass through foil and some were defected why?
electrons have no mass
positive charge clustered in region
electrons move i n orbit around nucleus
atoms negative charges scattered in ball of pos.charge
32
What are noble gases?
Elements in group 1
Elements in group 8
Elements in group 15
Elements in group 18
33
The two most common alkali earth metals are?
iron silver
copper/zinc
sodium potastium
calcium magnesium
34
What are the Alkali Metal?
all of the above
shiny/soft
most reactive metals
found in compounds
35
What did Mendeleev conclude about elements?
properties are different
none of the above
masses are the same
properties are repeated
36
What does N stand for?
Neon
Nitrogen
Sodium
37
What is a metal?
good conductor of energy and heat
not ductile
bad conductors of energy and heat
not malluable
38
What is corrosion?
deterioration of metal due to chem. reaction
creation of metal due to chem reaction
none
both
39
What does C stand for?
Clorine
Calcium
Carbon
Copper
40
What are transition metals?
malleable
both
none
They are good conductors
41
What is a diatomic molecule?
made up of two atoms
made up of one atom
made up of three atoms
made up of four atoms
42
Which group contains the most elements?
metaloids
non metals
transition metals
metals
43
What is a chemical symbol?
short hand name for an element
symbols
letters
long name for element
44
What is luster?
none
dull
shiny /reflective
both
45
What is a mass number?
sum of the electrons and neutrons
sum of protons and electrons
sum of protons, electrons, and neutrons
sum of the protons and neutrons
46
What is ductile?
pulled out or drawn
both
stays in the same shape
none
47
What does Li stand for?
lutetium
lathium
Lithium
48
What is beta particle?
fast moving proton
fast moving electrons
all of the above
fast moving neutron
49
What are Akaline Earth Metal?
all of the above
harder/denser
reactive
uncombined
50
What is a nonmetal?
element that lacks most properties of a metal
element that has most properties of a metal
element properties of a metal
none of the above
51
What does He stand for?
mercury
helium
holcium
hydrogen
52
What is thermal conductivity?
ability to transfer heat
all of the above
ability to absorb heat
ability to transfer cold
53
what is the periodic table?
arrangement of elements not showing patterns
arrangement of elements showing the patterns
none
both
54
What is radioactive dating ?
using carbon 11 to measure age of plant
using carbon 13 to measure age of plant
using carbon 14 to measure age of plant
using carbon 12 to measure age of plant
