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T2 Atoms, Elements, Periodic Table review for Q1 Flashcards | StudBud
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T2 Atoms, Elements, Periodic Table review for Q1
The periods are
Atomic number for potassium?
T2 Atoms, Elements, Periodic Table review for Q1
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1
Atomic number for potassium?
11
19
18
20
2
The periods are
vertical rows
horizontal colums
vertical columns
horizontal rows
3
(Blank) is/are anything that has mass and takes up space.
Energy
Subatomic particles
Elements
Matter
4
How is the periodic table arranged?
Both increasing atomic number and increasing mass
By increasing mass
By the class the element is a part of
By increasing atomic number
5
Chose the answer that has correctly written element symbols.
Si and be
h and b
Ne and na
Li and H
6
What properties do noble gasses have in common?
colored and oderless gases
colorless gas and smelly
smelly and colored gas
odorless and colorless gas
7
How many total groups are there on the periodic table
18
10
8
8
Noble gases are also a member of what class of element?
metalloids
metals
non-metals
9
What is the atomic number of the last naturally occurring element on the periodic table?
92
91
93
1
10
What subatomic particles make up atoms?
protons
neutrons
electrons
all answers are correct
11
Why is the nucleus positively charged?
neutrons are positively charged while protons are neutral
electrons negative charge cancels out the positively charged protons
neutrons are neutrally charged and protrons are positively charged
protons are positively charged while neutrons have no charge
12
What are the group numbers for "main group elements"?
one through 18
1A through 8A
1 through 8
13
What class of elements is hydrogen in?
non-metals
metals
metalloids
noble gases
14
Elements are
all three answers are incorrect
made of all one type of element
has properties unique to itself
pure substances
15
How many periods are present in the periodic table?
7
8
18
4
16
Which subatomic particle is found in a "cloud" outside the nucleus?
electrons
neutrons
protons
17
What is the standard "room temperature"?
68° C
20° F
68° F
20° C
18
Which subatomic particle or particles are found in the nucleus?
neutrons and protons
neutrons
neutrons and elections
protons
19
Which metal is a liquid at room temperature?
cadmium (Cd)
mercury (Hg)
gold (Au)
bromine (Br)
20
Why are atoms neutral?
There are equal numbers of protons and electrons.
They all have positive protons.
Becuase they just are.
There are more protons than electrons
21
What is really important to know when writing the symbol of an element?
atomic number
class of element
the name
that they are case sensitive
22
Which is an example of a metalloid?
Silicon
carbon (C)
phosphorus (P)
aluminum (Al)
23
Which class of elements has the fewest elements?
non-metals
metals
metalloids
24
Which class or classes of element is a bad conductor?
noble gases
metalloids
non-metals
metals
25
What is element 16?
nitrogen
sulfur
phosphorous
oxgyen
