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Atoms and periodic table: short Flashcards | StudBud
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Atoms and periodic table: short
Atoms and periodic table: short
16 terms
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Mendeleev, atoms, periodic table
Flashcards
16 cards
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Practice quiz
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Questions
16
Answers
1
Which of these elements is an alkali metal (group 1)?
aluminum
sodium
chlorine
2
How many valence electrons are in group 2 elements?
four
two
one
3
Mendeleev's periodic tabel contained all of the elements we know today.
False
True
4
The periodic table is organized into
a spiral.
a circle by increasing atomic mass.
a random assortment of elements.
rows and columns
5
The first successful periodic table of elements was published by
Einstein
Darwin
Mendeleev
Webster
6
The smallest unit of a compound that has the properties of the compound is
a molecule of that compound.
an isotope.
a solution.
an element in the compound.
7
All atoms of an element have the same number of
protons.
neutrons
protons and neutrons.
8
Group one elements , far left of the periodic table are the
halogens.
noble gases.
alkali metals.
9
The nucleus of an atom consists of protons and electrons.
True
False
10
Nonmetal, like carbon and oxygen, are found
in the middle of the periodic table.
on the right side of the periodic table.
on the left side of the periodic table.
11
Mendeleev placed elements in groups based on their
geographic location.
atomic number.
properties.
color.
12
Valence electrons are those
in the outermost energy level.
closest to the nucleus.
13
Where are metals found in the periodic table?
all over
on the left
on the right side
14
Mendeleev is known for
publishing the first periodic table of elements.
discovering all the known elements.
discovering the proton.
creating today's atomic model.
15
The atomic number of an element's atoms is the number of
neutrons.
electrons and neutrons.
fingers.
protons.
16
Mendeleev first organized elements by their
size
atomic weight
abundance
cost to buy.
