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Periodic Table and Groups Flashcards | StudBud
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Periodic Table and Groups
Periodic Table and Groups
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#periodic table #atoms
Flashcards
28 cards
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Questions
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Answers
1
What is the atomic symbol for Carbon
C
P
O
CL
2
The #of protons = the # of _________ in an uncharged atom.
Neutrons
Outer shell
Electrons
Nucleus
3
What is the center of the atom called?
Nucleus
Protons and Neutrons
Shells
Electron
4
How can you find the number of neutrons?
Atomic Mass - Atomic #
Atomic Mass - Atomic Symbol
Equal to Atomic #
Atomic # - Atomic Mass
5
What is the charge of an Electron
Positive
Neutral
Negative
Valence
6
What group has the most reactive metals?
17
1
18
2
7
All elements in the same ________ have the same number of valence electrons.
group
table
period
8
How can you find the number of neutrons?
Equal to Atomic #
protons + electrons
Atomic mass - # of protons
Atomic # - # of electrons
9
What is found in the nucleus?
electrons and nucleus
neutrons and electrons
electrons and protons
neutrons and protons
10
What group contains the alkali metals?
Group 2
Group 17
Group 18
Group 1
11
Which group does not combine with other elements?
Alkali metals
Alkaline Earth metals
Halogens
Noble gases
12
Groups help you identify
the # of protons.
the # of valence electrons.
the # of shells.
the # of neutrons.
13
Which group is stable?
Noble gases
Alkali metals
Halogens
Alkaline Earth metals
14
The electrons in the outer shell are called
valence electrons.
loose electrons.
synchronous electrons.
shared electrons.
15
In which group are the most reactive nonmetals found?
17
18
1
2
16
Elements with with similar chemical properties are
Only metals
Only nonmetals
In the same group
In the same period
17
Where are the metals found on the periodic table?
Left and middle
Left 2 groups only
The stair-step section
Right two groups only
18
What is the only nonmetal on the left side of the perioidic table?
Neon
Hydrogen
Sodium
Potassium
19
All elements in period 3 have
3 valence electrons.
the same number of protons and neutrons.
three energy levels.
20
What group is named the halogens?
Group 18
Group 17
Group 2
Group 1
21
What is the charge of a neutron?
Positive
Guilty
Neutral
Negative
22
Where are the non-metals found on the periodic table?
The stair-step section
Just about the right 3 groups
Left 2 groups only
Left and middle
23
Periods help you identify
the # of protons.
the # of shells.
the # of valence electrons.
the # of neutrons.
24
What group is named the noble gases?
Group 2
Group 18
Group 1
Group 17
25
What group contains the alkaline earth metals?
Group 17
Group 18
Group 1
Group 2
26
How many valence electrons do elements in group 13 have?
1
13
3
none
27
The periodic table is arranged
by the number of isotopes they form.
by pretty pictures.
in alphabetical order.
by increasing atomic number.
28
The atomic number tells you the number of
protons.
nuclei.
neutrons.
valence electrons.
