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Yr8 T3 Chemistry Flashcards | StudBud
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Yr8 T3 Chemistry
Yr8 T3 Chemistry
36 terms
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7th grade chemistry #chemistry #elements #families #science #7thgrade #seventhgrade #eighthgrade
Flashcards
36 cards
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Questions
36
Answers
1
True or False: Poor metals have a high melting point?
True
False
2
What is the atomic number of Boron (B)?
5
2
18
10
3
An example of a poor metal is.....
Tin-man
Pop can
Penny
Superman's home planet
4
An example of an Alkali Metal is....
Phone cord
Banana
"Open" sign
Battery
5
What element is in group 16, period 3
Sulfur
Oxygen
Magnesium
Carbon
6
Metalloids have characteristics of
Both metals and non-metals
metals
Non-metals
Neither metals nor non-metals
7
Which element is an example of a strong conductor?
Oxygen
Chlorine
Helium
Copper
8
What periodic group is Chlorine (Cl) located in?
Alkali Metals
Noble Gases
Transition Metals
Halogens
9
The transition metals are in which groups/families
18
1
13-15
3-12
10
A compound is two or more elements chemically bound
that lose their properties and create a new substance
that keep their properties
that is made up of a single type of atom
that break easily
11
Chemical/Physical Change: Fermenting cheese
Chemical Change
Physical Change
12
True or False: There are more metals than non-metals on the periodic table.
True
False
13
A malleable metal means?
it has a high melting point
It can be shaped with pressure
it is very reactive
it conducts electricity
14
A diamond has what characteristics?
Reactive and lusterous
synthetic and dense
Luster and dense
Dull and dense
15
These spoons are an example of...
Reactive
Malleable
Conductor
Dense
16
A proton has a _______ charge
Neutral (No Charge)
Positive
Negative
Electric
17
Periods are the ______ rows in a periodic table.
Diagonal
Zig-zag
Horizontal
Vertical
18
What is the basic building block of an element?
Matter
Electron
Proton
Atom
19
Brittle means?
Smooth
soft and bendable
Easily cracked or fractured
Man-made
20
What is the symbol for Sodium?
Na
Sd
K
So
21
Who was the genius that created the periodic table and got it right the first time?
Albert Einstein
Dmitri Mendeleev
Ernest Rutherford
22
True/False - Electrons are in the nucleus.
False
True
23
An atom is made up of proton, electron, and ________
Neutron
Matter
Oxygen
DNA
24
True/False - The Noble Gases are very reactive.
False
True
25
Sodium catches fire when it hits water. What is happening?
Conducting
Lustering
Magic
A reaction
26
The periodic table has vertical columns called ________
Groups/ families
Rows
Tables
Periods
27
The _____ number is the amount of protons or electrons in an atom.
Mass
Atomic
Jersey
Phone
28
The atomic mass (mass number) of an element is equal to ______
# of electrons+protons
# of neutrons+protons
# protons
# of electrons
29
Element is
is not on the periodic table
made of different types of atoms
made up of compounds and mixtures
made up of the same type of atoms
30
There can be up to ____ electrons in the 2nd energy shell.
18
4
2
8
31
NaCl is an example of a
Compound
Mixture
Liquid
Element
32
A collection of elements on the periodic table with similar properties are....
Families
Compounds
Periods
Tables
33
Physical/Chemical Change: Water boiling
Physical Change
Chemical Change
34
Lead is an example of a
Compound
Mixture
Pencil
Element
35
Alkali Metals are known to be the least reactive metals on the periodic table.
True
False
36
Reactive means ________
transfers electricity and heat
Man-made
Responds to other elements
Reflects light
