Chapter 4 Elements And The Periodic Table Question Preview (ID: 16680)
Periodic Table And Atoms.
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In an atom, the number of protons equals the number of
a) electrons
b) neutrons
c)
d)
Which describe the characteristics of metals?
a) highly reactive
b) malleable, ductile, good conductors
c) are on the right side of the periodic table
d)
Columns (groups) of the periodic table
a) have elements with different characteristics
b) have elements with similar characteristics
c) have the same atomic number
d)
The elements that do not ordinarily form compounds are called
a) halogens
b) noble gases
c) alkali metals
d) alkali earth metals
Atoms with the same number of protons but a different number of neutrons are called
a) ions
b) neutrons
c) isotopes
d) metals
Which group of elements have properties of metals and nonmetals?
a) noble gases
b) transition elements
c) metalloids
d) protons
The model that shows electrons orbiting the nucleus similar to the way planets orbit the sun is called
a) Thompson's model
b) Cloud model
c) Rutherford's model
d) Bohr's model
Mendeleev arranged his periodic table by
a) increasing atomic mass
b) increasing atomic number
c)
d)
Horizontal rows are the periodic table are known as
a) groups
b) families
c) periods
d) nonmetals
The number of neutrons in an atom can be determined by
a) adding the atomic number to the mass number
b) dividing the mass number by the atomic number
c) subtracting the atomic number from the mass number
d) multiplying the atomic number by 2
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