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Duplicate of Yr8 U1 Chemistry Flashcards | StudBud
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Duplicate of Yr8 U1 Chemistry
Duplicate of Yr8 U1 Chemistry
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7th grade chemistry
Flashcards
27 cards
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Practice quiz
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Questions
27
Answers
1
A proton has a _______ charge
Positive
Electric
Negative
Neutral (No Charge)
2
True/False - The Noble Gases are very reactive.
False
True
3
What element is in group 16, period 3
Sulfur
Carbon
Oxygen
Magnesium
4
What periodic group is Chlorine (Cl) located in?
Transition Metals
Halogens
Alkali Metals
Noble Gases
5
Who was the genius that created the periodic table and got it right the first time?
Ernest Rutherford
Dmitri Mendeleev
Albert Einstein
6
The atomic mass (mass number) of an element is equal to ______
# of neutrons+protons
# protons
# of electrons+protons
# of electrons
7
Element is
is not on the periodic table
made up of compounds and mixtures
made of different types of atoms
made up of the same type of atoms
8
An example of a poor metal is.....
Penny
Pop can
Superman's home planet
Tin-man
9
Reactive means ________
transfers electricity and heat
Reflects light
Responds to other elements
Man-made
10
Physical/Chemical Change: Water boiling
Physical Change
Chemical Change
11
The transition metals are in which groups/families
1
18
13-15
3-12
12
The periodic table has vertical columns called ________
Rows
Periods
Tables
Groups/ families
13
What is the atomic number of Boron (B)?
10
2
18
5
14
What is the symbol for Sodium?
Na
So
K
Sd
15
What is the basic building block of an element?
Proton
Atom
Matter
Electron
16
There can be up to ____ electrons in the 2nd energy shell.
8
4
2
18
17
Alkali Metals are known to be the least reactive metals on the periodic table.
True
False
18
A compound is two or more elements chemically bound
that keep their properties
that break easily
that lose their properties and create a new substance
that is made up of a single type of atom
19
An atom is made up of proton, electron, and ________
Oxygen
DNA
Neutron
Matter
20
True or False: There are more metals than non-metals on the periodic table.
False
True
21
True/False - Electrons are in the nucleus.
True
False
22
These spoons are an example of...
Malleable
Dense
Reactive
Conductor
23
Periods are the ______ rows in a periodic table.
Vertical
Zig-zag
Diagonal
Horizontal
24
A collection of elements on the periodic table with similar properties are....
Compounds
Periods
Tables
Families
25
Lead is an example of a
Compound
Element
Mixture
Pencil
26
Metalloids have characteristics of
Non-metals
metals
Both metals and non-metals
Neither metals nor non-metals
27
The _____ number is the amount of protons or electrons in an atom.
Phone
Atomic
Jersey
Mass
