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Periodic Table! Flashcards | StudBud
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Periodic Table!
Periodic Table!
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7th grade chemistry
Flashcards
31 cards
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Questions
31
Answers
1
What is the symbol for Sodium?
Sd
So
Na
K
2
True/False - Electrons are in the nucleus.
False
True
3
The periodic table has vertical columns called ________
Periods
Tables
Rows
Groups/ families
4
What periodic group is Chlorine (Cl) located in?
Halogens
Noble Gases
Alkali Metals
Transition Metals
5
What element is in group 16, period 3
Sulfur
Magnesium
Oxygen
Carbon
6
Sodium catches fire when it hits water. What is happening?
Magic
Lustering
Conducting
A reaction
7
An atom is made up of proton, electron, and ________
Neutron
Matter
Oxygen
DNA
8
The _____ number is the amount of protons or electrons in an atom.
Phone
Jersey
Mass
Atomic
9
Which element is the most reactive?
Krypton (Kr)
Potassium (K)
Calcium (Ca)
Nickel (Ni)
10
A collection of elements on the periodic table with similar properties are....
Tables
Families
Periods
Compounds
11
An example of an Alkali Metal is....
Phone cord
Banana
Battery
"Open" sign
12
Brittle means?
Easily cracked or fractured
soft and bendable
Smooth
Man-made
13
Which element is an example of a strong conductor?
Helium
Chlorine
Copper
Oxygen
14
Periods are the ______ rows in a periodic table.
Zig-zag
Diagonal
Vertical
Horizontal
15
What is the basic building block of an element?
Atom
Proton
Matter
Electron
16
The transition metals are in which groups/families
1
3-12
13-15
18
17
Alkali Metals are know to be the least reactive metals on the periodic table.
False
True
18
What is the atomic number of Boron (B)?
10
2
18
5
19
There can be up to ____ electrons in the 2nd energy shell.
8
18
2
4
20
True or False: Poor metals have a high melting point?
True
False
21
True or False: There are more metals than non-metals on the periodic table.
False
True
22
True/False - The Noble Gases are very reactive.
False
True
23
An example of a a poor metal is.....
Tin-man
Pop can
Superman's home planet
Penny
24
The atomic mass (mass number) of an element is equal to ______
# of electrons+protons
# protons
# of electrons
# of neutrons+protons
25
These spoons are an example of...
Conductor
Dense
Malleable
Reactive
26
A proton has a _______ charge
Negative
Positive
Neutral (No Charge)
Electric
27
Reactive means ________
Man-made
Reflects light
Responds to other elements
transfers electricity and heat
28
A diamond has what characteristics?
Dull and dense
Luster and dense
synthetic and dense
Reactive and lusterous
29
To create table Salt (NaCl), which two periodic groupings need to bond?
Alkaline Earth Metals and Noble Gases
Poor Metals and Alkali Metals
Transition Metals and Halogens
Alkali Metals and Halogens
30
A malleable metal means?
it conducts electricity
it has a high melting point
it is very reactive
It can be shaped with pressure
31
Who was the genius that created the periodic table and got it right the first time?
Ernest Rutherford
Dmitri Mendeleev
Albert Einstein
