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Chapter 5 Review Flashcards | StudBud
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Chapter 5 Review
Chapter 5 Review
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Periodic table
Flashcards
10 cards
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Practice quiz
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Questions
10
Answers
1
A row is the same as a ________ and tells us the number of energy levels an element has.
group
transition metal
column
period
2
Mendeleev arranged his periodic table based on
mass
electrons
atomic number
protons
3
What halogen is the most reactive?
iodine
fluorine
bromine
chlorine
4
Valence electrons are found on the outermost energy level and are identified by the"a" group #
False
True
5
Which is not true about metals?
good conductors
ductile
they are brittle and will crack easily
malleable
6
Non-metals have more then 4 valence electrons.
True
False
7
What metaloid has 5 protons and is located in group 3a?
nitrogen
carbon
aluminum
boron
8
What alkali metal is the most reactive
rubidium
potssium
sodium
lithium
9
Alkali metals and halogens are highly reactive and react with other elements.
False
True
10
Why did Mendeleev leave blank spaces on his table?
for undiscovered elements
for stable elements
for subatomic particles
for radioactive elements
