Unit 6 Biobeyond Study Guide Exam
Questions and Answers with Verified
Solutions | Latest Updated 2026
Anion a negative ion formed by gaining electrons
Atomic number the number of protons in an atom
Cation a positive ion formed by losing electrons
Chemical bond an interaction between two or more of the
same or
different elements that results in the
formation of
molecules
Covalent bond a type of strong bond between two or more
of the
same or different elements; forms when
electrons
are shared between elements
Electron a negatively charged particle that resides
outside
of the nucleus in the electron orbital; lacks
functional mass and has a charge of?1
,Electron transfer the movement of electrons from one
element to
another
Element one of 118 unique substances that cannot
be
broken down into smaller substances and
retain
the characteristic of that substance; each
element
has a specified number of protons and
unique
properties
Hydrogen bond a weak bond between partially positively
charged
hydrogen atoms and partially negatively
charged
elements or molecules
Ion an atom or compound that does not
contain equal
numbers of protons and electrons, and
therefore
has a net charge
Ionic bond a chemical bond that forms between ions
of
opposite charges
Isotope one or more forms of an element that have
different numbers of neutrons
, Mass number the number of protons plus neutrons in an
atom
Matter anything that has mass and occupies
space
Neutron a particle with no charge that resides in the
nucleus
of an atom; has a mass of 1
Nonpolar covalent bond a type of covalent bond that forms
between atoms
when electrons are shared equally
between atoms,
resulting in no regions with partial charges
as in
polar covalent bonds
Nucleus (chemistry) the dense center of an atom
made up
of protons and (except in the case of a
hydrogen
atom) neutrons
Octet rule states that the outermost shell of an
element with a
low atomic number can hold eight
electrons
Questions and Answers with Verified
Solutions | Latest Updated 2026
Anion a negative ion formed by gaining electrons
Atomic number the number of protons in an atom
Cation a positive ion formed by losing electrons
Chemical bond an interaction between two or more of the
same or
different elements that results in the
formation of
molecules
Covalent bond a type of strong bond between two or more
of the
same or different elements; forms when
electrons
are shared between elements
Electron a negatively charged particle that resides
outside
of the nucleus in the electron orbital; lacks
functional mass and has a charge of?1
,Electron transfer the movement of electrons from one
element to
another
Element one of 118 unique substances that cannot
be
broken down into smaller substances and
retain
the characteristic of that substance; each
element
has a specified number of protons and
unique
properties
Hydrogen bond a weak bond between partially positively
charged
hydrogen atoms and partially negatively
charged
elements or molecules
Ion an atom or compound that does not
contain equal
numbers of protons and electrons, and
therefore
has a net charge
Ionic bond a chemical bond that forms between ions
of
opposite charges
Isotope one or more forms of an element that have
different numbers of neutrons
, Mass number the number of protons plus neutrons in an
atom
Matter anything that has mass and occupies
space
Neutron a particle with no charge that resides in the
nucleus
of an atom; has a mass of 1
Nonpolar covalent bond a type of covalent bond that forms
between atoms
when electrons are shared equally
between atoms,
resulting in no regions with partial charges
as in
polar covalent bonds
Nucleus (chemistry) the dense center of an atom
made up
of protons and (except in the case of a
hydrogen
atom) neutrons
Octet rule states that the outermost shell of an
element with a
low atomic number can hold eight
electrons
