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