CHAM TEST (Semester 2 test 1) Exam
Questions and Answers Latest Already
Graded A+ Update 2026
Why do atoms become ions?
Because when atoms bond with other atoms the transfer electrons
make them unevenly charged.
Where do ionic bonds form?
between oppositely charged ions.
what do electrostatic attraction between metal and non metal atoms
do?
they hold ionic molecules together
why in a ionic compound must the charges balance?
to create a neutral compound.
what does the chemical formula show? ex- NaCl
it shows the ratio of the ions.
What are binary ionic compounds (use swap & drop)
they are compounds that have 2 different elements that are ionic
what are transition metals?
ex= Copper(II) they can from various possible ions
naming ionic compound or NaCl
, Sodium chloride
what are polyatomic ions?
A charged group of covalently bonded atoms that combine with ions of
opposite charges to form ionic compounds
what are ionic bonds made of? (think of texture)
its mostly crystalline, hard, rigid and brittle.
what is crystal lattice?
its a 3D thing of -&+, strong, high melting/ boiling point, conducts
electricity when melted or dissolved.
what do covalently bonded atoms form?
they form neutral molecules
What does a molecular formula show?
it shows the types and numbers of atoms in a molecule
how can 2 non metals both gain?
by sharing covalent bonds.
what are covalent bonds?
they are 2 non metal, and they need to gain electrons to get an octet.
Metal + non metal
ionic
2 nonmetals are?
covalent
what is a lone pair?
Questions and Answers Latest Already
Graded A+ Update 2026
Why do atoms become ions?
Because when atoms bond with other atoms the transfer electrons
make them unevenly charged.
Where do ionic bonds form?
between oppositely charged ions.
what do electrostatic attraction between metal and non metal atoms
do?
they hold ionic molecules together
why in a ionic compound must the charges balance?
to create a neutral compound.
what does the chemical formula show? ex- NaCl
it shows the ratio of the ions.
What are binary ionic compounds (use swap & drop)
they are compounds that have 2 different elements that are ionic
what are transition metals?
ex= Copper(II) they can from various possible ions
naming ionic compound or NaCl
, Sodium chloride
what are polyatomic ions?
A charged group of covalently bonded atoms that combine with ions of
opposite charges to form ionic compounds
what are ionic bonds made of? (think of texture)
its mostly crystalline, hard, rigid and brittle.
what is crystal lattice?
its a 3D thing of -&+, strong, high melting/ boiling point, conducts
electricity when melted or dissolved.
what do covalently bonded atoms form?
they form neutral molecules
What does a molecular formula show?
it shows the types and numbers of atoms in a molecule
how can 2 non metals both gain?
by sharing covalent bonds.
what are covalent bonds?
they are 2 non metal, and they need to gain electrons to get an octet.
Metal + non metal
ionic
2 nonmetals are?
covalent
what is a lone pair?
