HUBS1406 midyear exam Q & As
(Verified Answers) 2026
atomic number - Correct Answers ✅the number of protons
in the nucleus of an atom, which is characteristic of a
chemical element and determines its place in the periodic
table
atomic weight - Correct Answers ✅Another term for atomic
mass which is the total number of particles in the nucleolus ,
this the approximately equal to the number of protons and
neutrons, with a bit extra added by electrons. Calculated by
adding the mass of protons and neutrons
molecular weight - Correct Answers ✅the sum of the
atomic weights/ mass of all the atoms in a molecule
ion - Correct Answers ✅an atom or molecule with a net
electric charge due to the loss or gain of one or more
electrons. (An atom or molecule that has a positive or
negative electric charge).
atom - Correct Answers ✅a particle of matter that uniquely
defines a chemical element. (smallest unit into which matter
can be divided without the release of electrically charged
particles).
molecule - Correct Answers ✅The smallest particle of a
substance that has all of the physical and chemical properties
,HUBS1406 midyear exam Q & As
(Verified Answers) 2026
of that substance. (Two or more atoms joined via a covalent
chemical)
proton - Correct Answers ✅A small, positively charged
particle of matter found in the atoms of all elements.
neutrons - Correct Answers ✅neutral subatomic particle
that, in conjunction with protons, makes up the nucleus of
every atom except ordinary hydrogen (whose nucleus has
one proton and no neutrons).
electron - Correct Answers ✅A small particle with a
negative charge that is found in all atoms.
electrolyte - Correct Answers ✅A substance that breaks up
into ions (particles with electrical charges) when it is
dissolved in water or body fluids. (Soluble inorganic
molecules whose ions will conduct an electricalcurrent in
solution). - keep body fluids in balance
pH - Correct Answers ✅a measure of how acidic/basic
water is
acid - Correct Answers ✅A chemical that gives off
hydrogen ions in water and forms salts by combining with
certain metals. (a substance that can donate one or more of
its hydrogen ions to another substance).
, HUBS1406 midyear exam Q & As
(Verified Answers) 2026
alkali - Correct Answers ✅A chemical that can dissolve in
water, combine with acids to form salts, and make acids less
acidic.
matter - Correct Answers ✅physical substance in general,
as distinct from mind and spirit; (in physics) that which
occupies space and possesses rest mass, especially as
distinct from energy.
describe the makeup of an atom - Correct Answers ✅an
extremely small, positively charged nucleus surrounded by a
cloud of negatively charged electrons. The nucleus is
positively charged and contains one or more relatively heavy
particles known as protons and neutrons. Atoms are the basic
building blocks of matter.
ionic bonds - Correct Answers ✅an attractive force
between opposite charges, --> lattices of ions, cations and
anions
covalent bond - Correct Answers ✅he simultaneous
attraction of two nuclei for one or more pairs of electrons.
The electrons located between the two nuclei are bonding
electrons.
(Verified Answers) 2026
atomic number - Correct Answers ✅the number of protons
in the nucleus of an atom, which is characteristic of a
chemical element and determines its place in the periodic
table
atomic weight - Correct Answers ✅Another term for atomic
mass which is the total number of particles in the nucleolus ,
this the approximately equal to the number of protons and
neutrons, with a bit extra added by electrons. Calculated by
adding the mass of protons and neutrons
molecular weight - Correct Answers ✅the sum of the
atomic weights/ mass of all the atoms in a molecule
ion - Correct Answers ✅an atom or molecule with a net
electric charge due to the loss or gain of one or more
electrons. (An atom or molecule that has a positive or
negative electric charge).
atom - Correct Answers ✅a particle of matter that uniquely
defines a chemical element. (smallest unit into which matter
can be divided without the release of electrically charged
particles).
molecule - Correct Answers ✅The smallest particle of a
substance that has all of the physical and chemical properties
,HUBS1406 midyear exam Q & As
(Verified Answers) 2026
of that substance. (Two or more atoms joined via a covalent
chemical)
proton - Correct Answers ✅A small, positively charged
particle of matter found in the atoms of all elements.
neutrons - Correct Answers ✅neutral subatomic particle
that, in conjunction with protons, makes up the nucleus of
every atom except ordinary hydrogen (whose nucleus has
one proton and no neutrons).
electron - Correct Answers ✅A small particle with a
negative charge that is found in all atoms.
electrolyte - Correct Answers ✅A substance that breaks up
into ions (particles with electrical charges) when it is
dissolved in water or body fluids. (Soluble inorganic
molecules whose ions will conduct an electricalcurrent in
solution). - keep body fluids in balance
pH - Correct Answers ✅a measure of how acidic/basic
water is
acid - Correct Answers ✅A chemical that gives off
hydrogen ions in water and forms salts by combining with
certain metals. (a substance that can donate one or more of
its hydrogen ions to another substance).
, HUBS1406 midyear exam Q & As
(Verified Answers) 2026
alkali - Correct Answers ✅A chemical that can dissolve in
water, combine with acids to form salts, and make acids less
acidic.
matter - Correct Answers ✅physical substance in general,
as distinct from mind and spirit; (in physics) that which
occupies space and possesses rest mass, especially as
distinct from energy.
describe the makeup of an atom - Correct Answers ✅an
extremely small, positively charged nucleus surrounded by a
cloud of negatively charged electrons. The nucleus is
positively charged and contains one or more relatively heavy
particles known as protons and neutrons. Atoms are the basic
building blocks of matter.
ionic bonds - Correct Answers ✅an attractive force
between opposite charges, --> lattices of ions, cations and
anions
covalent bond - Correct Answers ✅he simultaneous
attraction of two nuclei for one or more pairs of electrons.
The electrons located between the two nuclei are bonding
electrons.
