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Elements And The Periodic Table
Test Description: Chapter 4 Holt Text
Instructions: Answer all questions to get your test result.
1) Dalton\'s atomic theory stated that every element was made of atoms that could not be subdivided, atoms of the same element are alike and
A
atoms are made of protons, neutrons and electrons
B
atoms are constantly in motion
C
the nucleus is the center of the atom
D
atoms can join to form molecules and compounds
2) Which statement is true according to Dalton\'s theory?
A
atoms of the same element differ in electric charge
B
atoms of the same element are exactly alike
C
atoms can be subdivided into smaller particles
D
atoms of different elements can join to form larger atoms
3) According to Bohr's model of the atom, electrons behave like
A
planets orbiting the sun
B
planets rotating on their axes
C
waves on a vibrating string
D
light energy in a vaccuum
4) The order of elements in the periodic table is based on
A
the number of protons in the nucleus
B
the number of neutrons in the nucleus
C
the electric charge of the nucleus
D
atomic mass
5) Valence electrons determine an atom's
A
electric charge
B
mass
C
period
D
chemical properties
6) Alkali metals are extremely reactive because they
A
are not solid at room temp
B
have very small atomic masses
C
have two valence electrons that form compounds with calcium and magnesium
D
have one valence electron that is easily removed to form a postive ion
7) Most halogens form compounds by
A
gaining an electron to form a negative ion
B
losing protons
C
losing an electron to form a positive ion
D
joining with both calcium and carbon
8) Carbon and other nonmetals are on which area of the periodic table?
A
in the bottom rows
B
on the left-most side
C
on the right side
D
in the middle column of the periodic table
9) Avogadro's constant is defined as the number of particles in
A
one gram of a pure substance
B
one liter of a pure substance
C
one mole of a pure substance
D
one kilogram of a pure substance
10) Ionization energy refers to the process of
A
changing from one period to another
B
losing or gaining protons
C
losing or gaining electrons
D
turning lithium into flourine
*select an answer for all questions
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