measurements in chemistry
States of Matter
Atomic structure
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Bonding
100
this branch of science is known as study of matter
What is Chemistry
100
this is the kind of mixture that is same throught.
What is a homogeneous mixture?
100
mass of neutrons is nearly equal to these subatomic particles.
What is a proton?
100
this group atoms forms ions with +3 charge
What is group 13
100
this is the formula for sodium nitride.
What is Na3N
200
this is the kind of mixture that is not same throughout.
What is heterogeneous mixture
200
matter is neither created or destroyed during this process.
What is a chemical reaction?
200
these elements form the major part of the periodic table.
What is a metal?
200
This is the formula for aluminum oxide
What is Al2O3
300
this is the density of an object if it has mass of 80 g and volume of 10ml.(don't forget the units)
What is 8 g/ml
300
Ability to rust is an example of this kind of property.
What is chemical property?
300
all the atoms are neutral because they have number of protons equal to these particles.
What are the electrons?
300
Al, Mg. Li are example of these type of elements
What are the representative elements?
300
this is the formula for sodium sulfide.
What is Na2S
400
this is the unit used to measure the volume of a liquid in lab.
What is ml or L
400
Vapor is an example of this state of matter.
What is a gas?
400
If the atom was a football stadium the ball in the center of the stadium is compared to this part of the atom.
What is a nucleus?
400
along with atomic number, this property also increase as you go down the group, but decreases as you go down the period.
What is atomic radius?
400
This bond is formed when two atoms share 2 electrons.
What is a single bond?
500
this is the method used to measure the volume of an irregular object.
What is water displacement method?
500
Out of table salt, nitrogen and air this one is not a substance.
What is air?
500
isotopes of the same element have different numbers for this.
What is a mass number or neutrons?
500
This scientist arranged the elements according to atomic mass in the periodic table.
Who is Dmitri Mendeleev?
500
this is the type of bond that can exist between two nitrogen atoms.
What is a triple covalent bond.
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