Thanato chemistry ch 1 2 3
Protons, electrons
A neutral atom has the same number of
proton
A positively charges particle in the nucleus of an atom is a
the atomic symbol
An abbreviation for the name of an element is
atomic weight
Isotopes differ on the basis of
+charged neuclues and - charged electrons
The force that holds an atom together is the interaction of
chemical bond
The interaction between 2 atoms in a molecule is called a
Positive charge
The nucleolus of an atom always has a
valence electrons
The outer orbital ring will contain the
molecule
The smallest particle of a compound that retains all the properties of that element is a
outer orbital ring
The valence electrons effecting compounds are located in the
negative
What is the electrical charge of an electron
diatomic molecules
certain atoms must be written with the subscript 2 when they appear by themselves
reactant
in an equation substances on the left of the arrow or equal sign`
product
in an equation substances on the right of the arrow
coefficients
in balancing equations the numbers that can change are the
ions
in chemical interactions atoms often lose or gain electrons and are no longer a neutral atom. The particles that result are called
the transfer of electrons
ionic bonds result from _________ from on atom to another
formula
the abbreviation for a compound is called
decomposition
the breakdown of a compound into its constituent parts and is a process that embalming attempts to retard is
sodium hydroxide
the chemical formula of NaOH denotes which of the following compounds
synthesis
the end result of a chemical change in which there are 2 reactions but only one product
atom
the smallest particle of an element that retains all the properties of that element is an
ions
when atoms gain or lose electrons, __________ are formed
superscript
which of the following represents an oxidation number
subscript
which of the following represents the definite proportion by mass
radical
which term is used as a synonymous term for polyatomic ion.
Valence number
The charge of an atom that is determined by the number of electrons lost, gained, or shared in a chemical reaction is the
equation
an abbreviation for a chemical change
ion
an atom that has gained or lost electrons in a chemical is an
a molecule
2 or more atoms of the same element form
compounds
2 or more elements chemically combined in a definite proportions by mass are
mixture
2 or more substances that are combined together but are NOT chemically combined form
protons, electrons, neutrons
Atomic mass of an atom can be determined by calculating the sume of the
isotopes
Atoms of the same atomic number and different masses (usually due to a different number of neutrons) are called
Isotopes
Compounds which have identical molecular formulas but different structural formulas are
the total number of its protons or electrons
The atomic number of an element is equivalent to
Family VIII
The atoms in a chemical bond try to be "happy" and take on the electronic config of the elements in
Family I
Halogen elements are found in
Family VIII
Nobel Gas elements are found in
compounds
Substances that can be decomposed or separated into singular substances are
Formula
The abbreviated expression representing a compound is a
proton, neutron
Which of the following are components of the nucleus of an atom
Compounds
Which of the following can be defined as a group of atoms chemically combined and having a neutral charge
mixtures
Which of the following can be separated by physical methods
compound
Which of the following is the result of 2 or more elements chemically united in a definite proportion by weight?
polyatomic ion
a charged group of atoms functioning as a single unit in a chemical reaction is a
molecule
a group of atoms functioning as a single atom in a chemical reaction,
polyatomic ions
a group of atoms which behave as if it were a single atom
period
a horizontal row of elements in the periodic table
family, group
a verticle column on the periodic table is called
