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Science Explorer Elements and the Periodic Table Chapter 3 Review Flashcards | StudBud
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Science Explorer Elements and the Periodic Table Chapter 3 Review
Science Explorer Elements and the Periodic Table Chapter 3 Review
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Chapter 3 of Chemical Building Blocks #8ScienceSSPP
Flashcards
25 cards
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Practice quiz
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Questions
25
Answers
1
What is it's property when a substance can be pulled or drawn into a wire?
malleable
reactive
ductile
magnetic
2
What elements can be used in making semiconductors?
nonmetals
metalloids
metals
noble gases
3
The products of nuclear fusion of the sun's hydrogen are energy and _________ nuclei.
helium
oxygen
beryllium
carbon
4
In what state of matter are electrons stripped away from the nuclei?
gas
liquid
plasma
solid
5
The mass of a ________ is about one atomic mass unit.
jargon
proton
electron
neutron
6
Which family is the most reactive group of metals in the periodic table?
alkali metals
alkaline earth metals
metalloids
nonmetals
7
How can an element's properties be predicted?
The atomic mass
The number of isotopes
The number of neutrons
the location in the periodic table
8
It is a very reactive group of mostly nonmetals whose atoms gain or share one electron.
halogen
diatomic
hydrogen
noble
9
What is the positively charged particle in an atom's nucleus?
proton
neutron
plasma
electron
10
What did Dmitri Mendeleev create?
metal alloys
semiconductors
periodic table
chemical reactions
11
A _________ consists of two nonmetal atoms bonded together?
acute molecule
magnetic molecule
diatomic molecule
malleable molecule
12
Which one is NOT a characteristic of most metals?
brittle
ductile
malleable
good conductor
13
What groups are shown at the bottom of the periodic table?
noble and reactive gases
hydrogens and heliums
Transition and conductors
lanthanides and actinides
14
What does the top number represent?
atomic molecule
chemical symbol
atomic number
atomic mass
15
From left to right, elements are arranged in ______________ order of atomic mass.
reactive
decreasing
increasing
nonreactive
16
What is a supernova?
a star that exploded
a star that died
a planet that died
a planet that exploded
17
What are good conductors of heat and electricity?
metals
metalloids
alkaline earth metals
nonmetals
18
What particles are lost, gained, or shared in chemical reactions?
protons
electrons
plasmas
neutrons
19
What does the letter represent?
atomic molecule
atomic number
chemical symbol
atomic mass
20
What are the sun and many other stars made of mostly?
oxygen
iron
carbon
hydrogen
21
What has some of the properties of both metals and nonmetals?
metalloid
alloy
noble gas
alkaline earth metal
22
Where are heavy elements made?
in stars
in black holes
in space
In planets
23
An element's _________ tells the number of protons in its nucleus.
atomic number
period
chemical symbol
atomic mass
24
The reactivity of metal elements are in ________ order from left to right on the periodic table
decreasing
vertical
horizontal
increasing
25
What does the bottom number represent?
atomic molecule
atomic number
atomic mass
chemical symbol
