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Physical Science
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1
What did Rutherford's model of the atom include that Thomson's model did not have?
Energy levels
A nucleus
Smaller particles
Electron clouds
2
Which lists the elements in order from most conductive to least conductive?
Potassium (K), germanium (Ge), selenium Se
Selenium (Se), germanium (Ge), potassium (K)
Germanium (Ge), potassium (K), selenium (Se)
Potassium (K), selenium (Se), germanium (Ge)
3
Which properties make a metal a good material to use for electrical wires?
Ductility & malleability
Malleability & reactivity
Reactivity & conductivity
Conductivity & ductility
4
Who described the atoms as small spheres that could not be divided into anything smaller?
Dalton
Bohr
Thomson
Rutherford
5
Which lists only mellatoids?
Antimony (Sb), tellurium (Te), & gallium (Ga)
Polonium ( Po), aluminum (Al), & silicon (S)
Arsenic (As), sulfur (S), & polonium (Po)
Boron (B), germanium (Ge), & tellurium (Te)
6
Which determines the reactivity of an alkali metal?
The number of protons it has
It's ability to lose electrons
The shininess of it's surface
Its boiling and melting points
7
Which properties are characteristics of mellatoids?
Intermediate conductivity and a high melting point
High electrical conductivity and a high melting point
Low electrical conductivity and a low melting point
Intermediate conductivity and a low melting point
8
What trend does the reactivity of nonmetals show in a periodic table?
Increases from left to right across the periodic table
Random changes without any trends on the periodic table
Changes according to trends on the periodic table
Decreases from left to right across the periodic table
9
Which element is most likely to be shiny?
Carbon ,(Cz
Sulfur (S)
Calcium (Ca)
Boron (B)
10
What are the two parts of an atom?
Neutron and the proton cloud
The nucleus and the electron cloud
Nucleus and proton cloud
Neutron and the electron cloud
11
The first model of the atom was developed through?
Observation of the light emitted by elements when they are heated.
Thinking about the smallest particles of matter without experimenting
Analyzing the effects of a magnet on the path of a cathode ray.
Scientific experimentation & data analysis with water vapor & gases
12
When an atom has no charge loses two electrons,it becomes a
Negative ion
Positive ion
Negative isotope
Positive isotope
13
The elements least likely to form bonds are found in which group?
16
15
18
17
14
Who is known as the "father of modern chemistry' because he first organized all known elements into 4 different groups?
Henry Moseley
Johann Wolfgang Dobereiner
Dmitri Mendeleev
Antoine Lavoisier
15
What is the number located at the bottom of each element on the periodic table?
Combined number of protons and electrons
Chemical symbol
Number of neutrons
Atomic mass
16
Which of these is a molecular ingredient that could be used in a wall - filling material?
NeNa
HCl
C27H36N2O10
Na6Ba6
17
Atom of the element zinc has atomic # of 30 & a mass # of 65. How many protons does an uncharged zinc atom have?
95
30
35
65
18
Which statement describes a property of a proton?
Has a positive charge
Is found outside the nucleus
Has less mass than an electron
Is repelled by electrons
19
Which property do mellatoids share with nonmetals?
Both have low melting points
Both are very conductive
Both are brittle
Both are shiny
20
The elements in group 17 of the periodic table are all called halogens. All halogens have the same?
Number of possible isotopes
Number of valence electrons
Atomic number
Atomic mass
21
Which describes any substance that shatters or breaks easily?
Malleable
Brittle
Volatile
Ductile
