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SNC1W Chemistry Review Flashcards | StudBud
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SNC1W Chemistry Review
SNC1W Chemistry Review
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1
In Bohr's atomic model, the first electron orbit holds a maximum of 8 electrons.
True
False
2
The property of metals that allowed them to be hammered into thin sheets is
malleability
viscosity
ductility
lustre
3
The atomic number tells us the number of
electrons in the outermost orbit
protons
protons and neutrons
neutrons
4
Bohr's atomic model was a result of his experiments which showed
positively charged particles bouncing back from gold atoms
positively charged particles bending in a vacuum tube
hydrogen atoms emitting a few lines of colour instead of a complete rainbow
negative charged particles bending in a vacuum tube
5
In a neutral atom, the number of electrons always equals the number of neutrons.
False
True
6
Which of the following statements is true according to the particle theory of matter?
all particles of matter move
only particles of solid move
only particles of liquids and gases move
particles of matter never move
7
From his gold foil experiment, Rutherford theorized that the atom
is mostly empty space with negative charges evenly distributed throughout
consists of a dense central nucleus containing negatively charged electrons
is mostly empty space with positive charges evenly distributed throughout
consists of a dense central nucleus containing positively charged protons
8
Which of the following is a list of characteristic physical properties?
malleability, conductivity, and flammability
acidity, lustre, and viscosity
colour, boiling point, and reactivity
density, melting point and freezing point
9
An alloy is a compound formed by chemically joining two or more metals.
True
False
10
In the periodic table, elements are arranged according to
atomic mass
mass number
# of neutrons
# of protons
11
Which group of elements belongs in the alkaline earth metal family?
Li, Be, B
O, S, Se
Mg, Ca, Sr
Li, Na, K
12
The identity of an element is determined by
the mass of the atom
the number of protons in the atom
the number of neutrons in the atom
the number of electron orbits in the atom
13
Which of the following is an element as well as a molecule?
14 kt gold
CO2
Ca
O3
14
Which of the following groups of elements is the least reactive?
alkaline earth metals
halogens
noble gases
alkali metals
15
Examples of non-metals are hydrogen, oxygen and nitrogen.
True
False
16
Compounds are made up of elements.
False
True
17
In a physical change, a new substance is produced.
True
False
18
Boiling point is the temperature at which a substance changes rapidly from
liquid to gas
solid to liquid
liquid to solid
gas to solid
19
Burning is an example of a chemical change.
False
True
20
An electron
carries no charge and orbits the nucleus
carries a negative charge and is very small compared to the proton
carries a negative charge and is located in the nucleus
carries a positive charge and is very small compared to the neutron
21
Which statement describes the main idea of the particle theory of matter?
the particles of a substance move faster as its temperature decreases
particles are in constant random motion
all matter is made up of the same kind of particle
particles that make up matter natural repel each other
22
Which of the following is an example of a solution?
NO3
cereal
juice
carbon
23
Pure water is an example of a mixture.
False
True
24
The outermost electron orbits of the noble gases all have
1 electron
2 electrons
the maximum number of electrons
7 electrons
25
Non-metals are lustrous, ductile and malleable.
True
False
26
Mixtures can exists as solids, liquids or gases.
False
True
27
A gas that can re-ignite a glowing splint is oxygen.
True
False
28
Ionic compounds consist of charged particles called ions.
False
True
29
To determine the number of neutrons, subtract the mass number from the atomic number.
True
False
30
Compounds cannot be broken down into simpler substances.
True
False
31
In the alkali metal family, the elements lower in the column are more reactive.
False
True
32
The lustre of a substance is its breakability or flexibility.
True
False
