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Periodic Table Flashcards | StudBud
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Periodic Table
Periodic Table
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Periodic Table Review
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
Current atomic theory states that ...
The nucleus is surrounded by an electron cloud.
Atoms are made of smaller particles.
All are true.
Protons and neutrons are in the nucleus.
2
An atom is identified by _____ .
its chemical symbol
the number of protons
its atomic mass
the number of neutrons
3
Isotopes are atoms of the same element that have different numbers of _____ .
energy levels
electrons
protons
neutrons
4
Chemical symbol?
39.948
18
Argon
Ar
5
A look inside the nucleus would reveal...
protons and neutrons
protons and electrons
neutrons and electrons
only neutrons
6
Chemical name?
18
Ar
Argon
39.948
7
"small but mighty" subatomic particle?
electron
nucleus
proton
neutron
8
Atoms are the "building blocks of _____ ".
elements
the Periodic Table
space
matter
9
Negatively charged subatomic particle?
neutron
nucleus
electron
proton
10
Atomic number?
18
Ar
Argon
39.948
11
Positively charged subatomic particles?
electron
nucleus
proton
neutron
12
In the Periodic Table, horizontal rows are called ____ .
rows
groups
families
periods
13
Neutral subatomic particle?
proton
nucleus
neutron
electron
14
Each different kind of atom is given a special name and is then referred to as an _____ .
compound
molecule
element
mixture
15
Russian chemist, _______ , organized all the elements in a chart called the Periodic Table.
Dmitri Mendeleev
Alexsei Farvoski
Vladimir Markinivok
Alexander Bultrov
16
Which statement is TRUE?
Unlike charges hold the electrons to the nucleus.
Protons are neutral.
Electrons are positive.
Neutrons are negative.
17
An______ is the smallest particle into which an element can be divided.
atom
compound
nucleus
molecule
18
In the Periodic Table, vertical columns are called _____ .
columns
rows
groups/families
periods
19
Negatively charged ____ would be found whizzing around the nucleus in ____ .
electrons, the electron cloud
neutrons, space ships
electrons, small cars
neutrons, the electron cloud
20
Atomic mass?
18
Argon
39.948
Ar
