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Physical Science 9 1st Semester Review Part I Flashcards | StudBud
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Physical Science 9 1st Semester Review Part I
Physical Science 9 1st Semester Review Part I
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1
Which is most likely to influence the properties of an element?
its atomic number
the number of valence electrons it has
Its atomic mass
2
Which family is the most reactive group of metals?
Noble gases
Alkali Metals
Carbon Family
3
Which change in state of matter is defined by this: particles speed up and become a gas?
evaporation
steaming
condensation
4
Which type of mixture has parts that are mixed evenly?
homogeneous mixtures
Heterogeneous mixtures
a liquid
5
What is the vertical column on the periodic table called ?
row
group
period
6
What term is defined as the electrons in the outermost energy level of an atom?
valence electrons
isotope
atomic mass
7
The smallest unit of a substance that behaves like the substance is a(n)
atom
molecule
element
8
Which of the following is an element?
Phosphate
Air
Nickel
9
What happens in a chemical reaction?
atoms are rearranged
atoms are created
atoms are destroyed
10
The kinetic theory of matter states that matter is made of atoms that are:
moving faster when temperatures are lower
in constant motion
moving slower when temperatures are higher
11
The chemical formula for sulfuric acid is H2SO4. How many total atoms are in the compound?
4
6
7
12
Who developed the organization behind the modern Periodic Table?
Henry Mopley
John Dalton
Dmitri Mendeleev
13
The nucleus of an atom is made up of:
protons and neutrons and has a neutral charge
protons and electrons and has an neutral charge
protons and neutorns and has a positive charge
14
How many carbon atoms are in this equation? 2C2SO4
2
8
4
15
What is the horizontal row on the periodic table called?
period
group
row
16
An atom that has a different number of neutrons but the same number of protons is called a(n)
ion
isotoope
anion
17
I have 7 valence electrons and 17 protons. Who am I?
Fluorine
Nitrogen
Chlorine
18
Which statement about Group 18(the noble gases) is correct?
They are highly reactive
They are rare in nature
They exist as single elements not compounds
19
The periodic table is organized based on what?
valence electrons
atomic number
atomic mass
20
Matter is defined as anything that:
contains kinetic energy
can be seen or touched
Has mass and takes up space
21
What type of matter is made up of parts that are NOT chemically combined?
compound
mixture
plasma
22
What type of matter is made up of parts that are NOT chemically combined?
compound
plasma
mixture
23
What element am I if I have 6 protons?
Lithium
Carbon
Neon
24
Is pizza an example of a heterogeneous or homogeneous mixture?
Homogeneous
Heterogeneous
25
Which of the following chemical equations is balanced?
HCl > H2 +Cl2
Cu(OH)2 > CuO + H2O
Cu2H > Cu2 +H2
26
Oxygen has an atomic number of 8. This means that an oxygen atom has:
a total of 8 protons and electrons
a total of 8 protons and neutrons
protons in its nucleus
27
Atoms will often join to form compounds so that each atom will have
an even number of electrons
an equal number of protons and neutrons
an outermost enegery level that is full of electrons
28
What can I look at on the Periodic Table to determine how many valence electrons an atom has?
Mass number
Group number
Atomic number
29
Which of the following is made of at least two different kinds of atoms?
compound
atom
molecule
30
Which type of mixture has parts that are mixed evenly? like in milk?
heterogeneous
homogeneous
compound
