CHAM TEST (Semester 2 test 1) Exam
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What is a chemical bond?
Its an electrical attraction between atoms.
Why do atoms bond with each other?
To get an octet/ to become more stable.
When are most atoms most stable?
When it has an octet / 8 valence electrons.
When do valence electrons get redistributed to reach an octet?
When the atoms bond.
How do you find the number of valence electrons for an element.
You look at the group number.(top number)
Are noble gasses stable? And why?
Yes because they already have 8 valence electrons.
What do atoms form when they bond?
Compounds.
What does electronegativity do or used for?
It determines if the atom will form a ionic or covalent bond.
, Anion and Cation are what signs?
Anion is negative and Cation is positive.
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?
Questions and Answers Latest Already
Graded A+ Update
What is a chemical bond?
Its an electrical attraction between atoms.
Why do atoms bond with each other?
To get an octet/ to become more stable.
When are most atoms most stable?
When it has an octet / 8 valence electrons.
When do valence electrons get redistributed to reach an octet?
When the atoms bond.
How do you find the number of valence electrons for an element.
You look at the group number.(top number)
Are noble gasses stable? And why?
Yes because they already have 8 valence electrons.
What do atoms form when they bond?
Compounds.
What does electronegativity do or used for?
It determines if the atom will form a ionic or covalent bond.
, Anion and Cation are what signs?
Anion is negative and Cation is positive.
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?
