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