General, Organic and Biological
Chemistry Chapter 3
_________ are formed when atom gain electrons. - ANSWER Anion
_________ are formed when atom losses electrons. - ANSWER Cation
____________ indicate the energy levels for atoms for the main group elements. -
ANSWER Periods
1 becquerel (bq) = ___________ - ANSWER 1 disintegration per second
1 cal = ____ Joule - ANSWER 4.184 j
A calorie (c) is defined as --------> - ANSWER The amount of energy required to raise the
temp of one gram of water one by a degree Celsius.
A compound formed when atoms share electron is called ______________. - ANSWER A
Covalent Compound
A mixture contains a composition that is ________________. - ANSWER Not constant
A molecule in which one are is more negatively charged than the rest is a ________________. -
ANSWER Polar molecule
An ionic bond between cation and anion results from a give and take of electrons. Why? -
ANSWER Its due to the strong attraction of the oppositely charged ions
Anion or Cation:
# Protons < # Elements - ANSWER Anion
Anion or Cation:
# Protons > # Elements - ANSWER Cation
Atomic Mass Unit (AMU) - ANSWER Is used to identify the mass of an atom
Avogadros number - ANSWER N= 6.02 * 10^23 particles/mole
Binary Compound - ANSWER A covalent compound composed of only two elements
Bonding Pair - ANSWER Electrons formed between two atoms
Celsius Formula (F to C) - ANSWER C= (F-32)/1.8
Chemist use a unit called the Mole (mol) to relate what? - ANSWER The mass of an element
or elements in grams to the number of particles it contains
Common polyatomic atoms (5) - ANSWER NO3- Nitrate
SO4^2- Sulfate
OH- Hydroxide
H3O+ Hydronium
, General, Organic and Biological
Chemistry Chapter 3
PO4^3- Phospate
Compounds containing mostly nonmetal components are found is what? - ANSWER Living
things
Covalent Bond - ANSWER The sharing of electrons between two non metals
Deka (Da) means ------> - ANSWER Ten
Dipole - ANSWER Indicates that there is an uneven sharing of electrons
Each elements is composed of extremely small particles called _____________. -
ANSWER Atoms
Electronegativity - ANSWER The ability of an atom to attract bonding electrons of a
covalent bond to itself.
Electrons are found in distinct energy levels based on what? - ANSWER The amount of
energy they possess
Electrons in a _________________ are unevenly distributed over the molecule. -
ANSWER Polar Molecule
Energy - ANSWER The ability to do work
Equal sharing of electrons in a covalent bond is call
------> - ANSWER Non polar covalent bond
Fahrenheit formula (C to F) - ANSWER
For metal ions how do you change the name to distinguish that its an ion if more than one ion can be
formed? - ANSWER if more than one ion can be formed, then a roman numeral in
parenthesis following the name of the metal indicates the charge
For metal ions how do you change the name to distinguish that its an ion? - ANSWER Add
the word ion to the name of the metal
For non-metal ions how do you change the name to distinguish that its an ion? -
ANSWER The suffix -ide replaces the last few letters of the name of the element
For polyatomic ions how do you change the name to distinguish it? - ANSWER Polyatomic
ions keep their name, you don't change it!
Heat is kinetic energy flowing from ------> - ANSWER A warmer body to a colder one
How are anions formed? - ANSWER When atoms gains electrons and it become negatively
charged
How are radioisotopes made in labs? - ANSWER By bombarding stable isotopes with fast
moving alpha particles, protons or neutrons
Chemistry Chapter 3
_________ are formed when atom gain electrons. - ANSWER Anion
_________ are formed when atom losses electrons. - ANSWER Cation
____________ indicate the energy levels for atoms for the main group elements. -
ANSWER Periods
1 becquerel (bq) = ___________ - ANSWER 1 disintegration per second
1 cal = ____ Joule - ANSWER 4.184 j
A calorie (c) is defined as --------> - ANSWER The amount of energy required to raise the
temp of one gram of water one by a degree Celsius.
A compound formed when atoms share electron is called ______________. - ANSWER A
Covalent Compound
A mixture contains a composition that is ________________. - ANSWER Not constant
A molecule in which one are is more negatively charged than the rest is a ________________. -
ANSWER Polar molecule
An ionic bond between cation and anion results from a give and take of electrons. Why? -
ANSWER Its due to the strong attraction of the oppositely charged ions
Anion or Cation:
# Protons < # Elements - ANSWER Anion
Anion or Cation:
# Protons > # Elements - ANSWER Cation
Atomic Mass Unit (AMU) - ANSWER Is used to identify the mass of an atom
Avogadros number - ANSWER N= 6.02 * 10^23 particles/mole
Binary Compound - ANSWER A covalent compound composed of only two elements
Bonding Pair - ANSWER Electrons formed between two atoms
Celsius Formula (F to C) - ANSWER C= (F-32)/1.8
Chemist use a unit called the Mole (mol) to relate what? - ANSWER The mass of an element
or elements in grams to the number of particles it contains
Common polyatomic atoms (5) - ANSWER NO3- Nitrate
SO4^2- Sulfate
OH- Hydroxide
H3O+ Hydronium
, General, Organic and Biological
Chemistry Chapter 3
PO4^3- Phospate
Compounds containing mostly nonmetal components are found is what? - ANSWER Living
things
Covalent Bond - ANSWER The sharing of electrons between two non metals
Deka (Da) means ------> - ANSWER Ten
Dipole - ANSWER Indicates that there is an uneven sharing of electrons
Each elements is composed of extremely small particles called _____________. -
ANSWER Atoms
Electronegativity - ANSWER The ability of an atom to attract bonding electrons of a
covalent bond to itself.
Electrons are found in distinct energy levels based on what? - ANSWER The amount of
energy they possess
Electrons in a _________________ are unevenly distributed over the molecule. -
ANSWER Polar Molecule
Energy - ANSWER The ability to do work
Equal sharing of electrons in a covalent bond is call
------> - ANSWER Non polar covalent bond
Fahrenheit formula (C to F) - ANSWER
For metal ions how do you change the name to distinguish that its an ion if more than one ion can be
formed? - ANSWER if more than one ion can be formed, then a roman numeral in
parenthesis following the name of the metal indicates the charge
For metal ions how do you change the name to distinguish that its an ion? - ANSWER Add
the word ion to the name of the metal
For non-metal ions how do you change the name to distinguish that its an ion? -
ANSWER The suffix -ide replaces the last few letters of the name of the element
For polyatomic ions how do you change the name to distinguish it? - ANSWER Polyatomic
ions keep their name, you don't change it!
Heat is kinetic energy flowing from ------> - ANSWER A warmer body to a colder one
How are anions formed? - ANSWER When atoms gains electrons and it become negatively
charged
How are radioisotopes made in labs? - ANSWER By bombarding stable isotopes with fast
moving alpha particles, protons or neutrons
