ALEKS PLACEMENT TEST: CHEMISTRY NEWEST EXAM WITH MULTIPLE CHOICE QUESTIONS AND DETAILED SOLVED SOLUTIONS ALREADY GRADED A+ AND 100% GUARANTEE PASS (BRAND NEW!!!!!!)

ALEKS PLACEMENT TEST: CHEMISTRY
NEWEST EXAM 2025-2026 WITH
MULTIPLE CHOICE QUESTIONS AND
DETAILED SOLVED SOLUTIONS
ALREADY GRADED A+ AND 100%
GUARANTEE PASS (BRAND NEW!!!!!!)



Liquid - THE CORRECT ANSWER-A state of matter with weak bonds


Gas - THE CORRECT ANSWER-A state of matter with no bonds


Plasma - THE CORRECT ANSWER-The state of matter with the highest
energy; it uses ionization instead of bonds


Robert Boyle - THE CORRECT ANSWER-First to define an element; any
substance is a substance unless it can be broken down


John Dalton - THE CORRECT ANSWER-Used and combined previous
ideas to discuss the atom; elements are made of atoms; all
atoms of an element are identical; atoms of different elements
are different; law of constant composition; atoms are invisible


Law of Constant Composition - THE CORRECT ANSWER-Atoms of one
element can combine with other elements to form compounds;
a given compound always has the same relative numbers and
types of atoms

,J.J. Thomson - THE CORRECT ANSWER-Discovered electrons and
protons and developed the plum pudding model of an atom


Electrons - THE CORRECT ANSWER-The negatively charged particle in
an atom; circles around the nucleus in the electron cloud


Proton - THE CORRECT ANSWER-The positively charged particle in an
atom; located in the nucleus; determine the element


Neutron - THE CORRECT ANSWER-The neutral particle in an atom; it
has no charge and is located in the nucleus


Plum Pudding Model - THE CORRECT ANSWER-A model of the atom
that depicts a sphere of positive charge with electrons scattered
throughout


Ernest Rutherford - THE CORRECT ANSWER-Conducted an
experiment in which he shot alpha particles at gold foil; roved
there was a small, dense nucleus with a positive charge and that
protons are positive


Metals - THE CORRECT ANSWER-Elements located on the left side of
the periodic table that want to lose electrons


Characteristics of Metals - THE CORRECT ANSWER-- Malleable
- Ductile
- Conductive
- Lustrous

,Malleable - THE CORRECT ANSWER-The ability to be molded into
shapes


Ductile - THE CORRECT ANSWER-The ability to be pulled into wire


Conductive - THE CORRECT ANSWER-The ability to allow heat or
electricity to pass through an object


Lustrous - THE CORRECT ANSWER-The ability to be shiny


Nonmetals - THE CORRECT ANSWER-Elements located on the right
side of the periodic table that want to gain electrons


Metalloids - THE CORRECT ANSWER-Elements placed in a stair-step
line between metals and nonmetals; they have characteristics of
both


Diatomic Molecules - THE CORRECT ANSWER-Elements that occur in
pairs in their natural state; hydrogen, nitrogen, oxygen,
fluorine, chlorine, bromine, iodine


Electronegativity - THE CORRECT ANSWER-The ability of a molecule
to attract electrons to it; increases as you move left to right in
the table and decreases as you move top to bottom; fluorine is
the hardest

, Atomic Radius - THE CORRECT ANSWER-The radius of an atom;
decreases as you move left to right and increases as you move
top to bottom


Ionization Energy - THE CORRECT ANSWER-The energy needed to rip
off an electron; increases as you move left to right and
decreases as you move top to bottom


Ion - THE CORRECT ANSWER-An atom that has gained or lost
electrons


Anion - THE CORRECT ANSWER-An atom that gains electrons and has
a negative charge; nonmetals


Cation - THE CORRECT ANSWER-An atom that looses electrons and
has a positive charge; metals


Isotope - THE CORRECT ANSWER-An atom that has changed its
number of neutrons


Atomic Number - THE CORRECT ANSWER-A unique number to each
element that tells the number of protons and the number of
electrons if the atom is neutral


Atomic Mass - THE CORRECT ANSWER-A number that tells the
number of protons and neutrons in an atom


Neutron Number - THE CORRECT ANSWER-Atomic Mass - Atomic
Number