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Periodic Table of Elements Flashcards | StudBud
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Periodic Table of Elements
Periodic Table of Elements
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#chemistry #elements
Flashcards
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Questions
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Answers
1
In an atomic symbol, the first letter is always
lowercase
uppercase
D
C
2
Where are the electrons located?
outer shells
In a proton
In your stomach
In the nucleus
3
What 3 parts make the atom?
Atomic mass, AMU, neutrons
Element, electrons, neutrons
Neutron, proton, electron
Element, protons, neutrons
4
How is the Periodic Table of Elements arranged?
number atoms
atomic number
color
number electrons
5
The atomic symbol for sodium is
Na
So
Ne
Sa
6
Elements on the far right of the periodic chart are not very reactive. They are known as
fair gases
molecular gases
noble gases
noble men
7
What the difference between periods and groups?
Period is a dot, group is a line
Periods go vertical, groups go horizontal
Periods go horizontal, groups go vertical
Periods are smaller than groups
8
How much does a neutron weigh?
3 AMU
3 grams
1 AMU
1 gram
9
An atom of the same element that have a different number of neutrons is a(n)
atom
isotope
element
period
10
Fe is the atomic symbol for _____.
iron
fluorine
oxygen
potassium
11
What is the charge of a neutron?
0
-
+
none of these
12
Protons have a _____ charge.
none of these
negative
neutral
positive
13
What is the smallest particle of an element?
proton
atom
electron
neutron
14
What does each dot represent in the Lewis Dot Structure?
1 RNA
1 H2O
1 atom
1 valence electron
15
What’s the first element on the periodic table?
Chlorine
Oxygen
Iron
Hydrogen
16
The periodic table is made up of mostly
semimetals
nonmetals
transition metals
noble gases
17
What does AMU stand for?
AMU
Atomic Number
Atomic Mass Unit
protons
18
How do you find the number of neutrons in an element?
Neutrons - protons
Atomic Mass - half life
Atomic mass - atomic number
Isotope - electrons
19
The time it takes for the radioactivity of an isotope to decay to half of its original amount
energy levels
carbon 14
Half Life
Radioactivity
20
What do Lewis Dot Structures show?
none of these
Bonds between protons and neutrons
Bonds between electrons and protons
Bonds between atoms and electrons
21
What are the properties of a Valence Electron?
Determines elements' properties
Has the highest energy
In the outermost shell
all of these
22
What’s the center of an atom?
atoms
atomic mass
electrons
nucleus
23
Helium has ___ valence electrons.
2
4
1
3
24
Periods tell you the number of ___ an element has
shells
valence electrons
protons
electrons
25
Where do you find the Atomic number?
top right
bottom
middle left
top left
26
_________ is the number protons an element has.
atom
atomic number
atomic mass
atomic symbol
