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Unit 2: Elements and the Periodic Table Flashcards | StudBud
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Unit 2: Elements and the Periodic Table
Unit 2: Elements and the Periodic Table
30 terms
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#elements #periodic table #chemistry
Flashcards
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Questions
30
Answers
1
_________ is the amount of energy that is needed to change the number of electrons in an atom.
All of the above
Atomic Size
Electronegativity
Ionization Energy
2
Electronegativity values, and consideration, does NOT include which type of elements?
Halogens
Alkaline Earth
Alkali
Noble Gases
3
Metalloids have the properties similar to:
Nonmetals only
Metals only
Neither metals nor nonmetals
Both metals and nonmetals
4
Ionization energy decreases as you go down the Periodic Table. Why?
Because the electrons are closer to the nucleus.
Because the electrons are farther from the nucleus.
Because the number the electrons decrease.
None of the below
5
which of the following is NOT a property of metals?
ductile
good conductor
not malleable
high melting point
6
Columns on the periodic table are called:
columns
families
there is no special name
periods
7
Halogens, a subcategory of nonmetals, can be found where on the Periodic Table?
Period 2
Period 5
Family 18
Family 17
8
What is the atomic symbol of sulfur?
Ga
S
Si
F
9
Which of the following is NOT a type of metal?
Alkaline Earth
Halogen
Alkali
Transition
10
Which of the following IS a property of alkali metals?
Hard
Reacts violently with water
2 valence electrons
High density
11
What is the atomic symbol for Gold?
Ag
Ga
O
Au
12
8 is the atomic number for which element?
Beryllium
Nitrogen
Carbon
Oxygen
13
Rows on the periodic table are called:
families
periods
rows
there is no name
14
What is the atomic symbol for mercury?
Hg
H
Mo
Mg
15
Why does the atomic size increase as you go down the Periodic Table?
More e- in the atom so the nucleus pulls the e- in
More e- in the atom more orbitals are needed to house them
Few e- in the atom more orbitals are needed to house them
Less e- in the atom so the nucleus pushes the e- out
16
The atomic number for Helium is:
1
1.0079
2
4.003
17
What is the atomic mass of an element equal to?
Protons + Electrons
Neutrons only
Protons only
Protons + Neutrons
18
Noble Gases, a subcategory of nonmetals, can be found where on the Periodic Table?
Period 7
Period 1
Family 18
Family 17
19
Most elements are considered to be:
metalloids
nonmetals
metals
none of the above
20
Which of the following is the atomic number for Chlorine?
7
17
6
11
21
Which of the following is NOT a property of nonmetals?
shiny
low melting points
brittle
poor conductor
22
The atomic number of an element is equal to the number of _______________.
Protons + Electrons
Neutrons only
Protons only
Protons + Neutrons
23
What is the atomic symbol for Hydrogen?
Hg
H
He
Hy
24
What is the atomic symbol for Lithium?
H
Li
Si
Lr
25
The atomic symbol ALWAYS:
Capitalization is random
Capitalizes the first letter only
Capitalizes both letters (if there is two)
Capitalizes the second letter only
26
The atomic number equals the number of ___________ the element has.
electrons + neutrons
protons + neutrons
protons
neutrons
27
Where are the protons located in an element?
Elements don’t have protons
inside ring
nucleus
outside ring
28
What are valence electrons?
The electrons that are in the outside ring
valence electrons aren’t different from regular electrons
The electrons that are in the nucleus
The electrons that are in the inside ring
29
On the periodic table metalloids can be found:
to the left of the staircase
under the staircase
to the right of the staircase
in the staircase
30
In an atom the number of protons are equal to the number of ______________.
Energy levels (rings)
Neutrons
All of the above
Electrons
