WorksheetsChemical Architecture Revision Questions
Total questions: 112
Worksheet time: 2hrs 33mins
What is the name given to the centre part of the atom?
Pit
Nucleus
Centre Part
Rock
The particles that are found in the nucleus of an atom are
neutrons and electrons
electrons only
protons and neutrons
protons and electrons
The positive particles of an atom are called ___________.
electrons
atoms
neutrons
protons
Electrons have this type of charge?
negative
positive
neutral
Different isotopes have...
different masses
different atomic numbers
different number of electrons
different numbers of protons
What is the mass number of the pictured atom?
2
4
6
He
What is the mass number of the pictured atom?
17
35
18
Cl
How many neutrons does this isotope of lithium have?
8
3
4
5
Which isotope of Lithium has 4 neutrons?
Lithium-6
Lithium-7
Lithium-8
they have the same number of neutrons
How many neutrons are there in carbon-14 (atomic number = 6)?
6
7
14
8
Isotopes are atoms of the same element with different numbers of __________ & therefore different __________.
neutrons ; atomic numbers
protons ; atomic numbers
electrons ; atomic masses
neutrons ; atomic masses
An atom is neutral therefore the number of
protons and neutrons is the same
protons and electrons is the same
neutrons and electrons is the same
protons and neutrons balances the number of electrons
Large molecules made up of small monomers are called
polymers
peptides
peptones
monomers
Monomers of ethene combined together form
polyamides
polyesters
poly(ethene)
all of them
A chain of repeating units (called monomers)
monomer
dimer
replicate
polymer
Distillation is made up of ___.
condensation, then boiling
condensation, then evaporation
boiling, then condensation
What is the most important feature in fractional distillation?
The component parts must have different boiling points
The component pars must have similar boiling points
The component parts must have the same boiling point
Water and alcohol are easily separated by distillation because of they have
different densities
different boiling points
different colours
different melting points
Fractional distillation separates crude oil based on the different __________ of the molecules in the mixture
melting points
boiling points
freezing points
chemical reactivities
Crude oil is made up of:
Ethane
Butane
A mixture of different hydrocarbons
Extremely large hydrocarbons which are broken up once extracted
Different fractions in crude oil are separated by:
Cracking
Fractional Distillation
Filtration
Crystalisation
A fraction of crude oil is made up of:
Hydrocarbons of similar chain lengths
Numbers
Large hydrocarbons
Alkenes only
Shorter hydrocarbons have:
Higher boiling points
Lower boiling points
Kerosene (paraffin) is used for:
Fuel for cars
Domestic heating and cooking
Fuel in aircraft
Petrol is used for:
Fuel in cars
Fuel in aircraft
Domestic heating and cooking
Road surfacing
Formed from dead marine organisms
Oil and Natural Gas
Coal
sandstone
Where do long chain hydrocarbons collect?
At the top
In the middle
At the bottom
Where do short chain hydrocarbons collect?
At the top
In the middle
At the bottom
What process happens as the crude oil enters the fractionating column?
Evaporation/Boiling
Condensation
Combustion
What process happens at each level in the fractionating column?
Evaporation
Condensation
Combustion
Why are ions formed?
To make our lives difficult
Because atoms want a full outer shell to be stable
Because atoms have the same number of protons and electrons
Because atoms gained neutrons
The atomic number tells you what?
number of electrons
number of protons
number of neutrons
both number of electrons and protons in an atom
What group does this atom belong to?
2
3
5
10
What is the maximum number of electrons in each shell?
2, 2, 2
8, 8, 8
2, 8, 8
8
What does the group number represent?
number of shells
number of electrons in outer shell
protons
neutrons
What does the period number represent?
number of shells
number of electrons in the outer shell
protons
neutrons
How many protons are in a sodium atom, Na? (tap to enlarge the periodic table)
Sodium has 1 proton.
Sodium has 3 protons.
Sodium has 11 protons
An element has the mass number 12 and atomic number 6. The number of neutrons in it is:
6
10
4
8
Atoms of the same element which have a different number of neutrons are called _________________.
ions
isotopes
quarks
molecules
How many neutrons does carbon-14 [atomic #6] contain?
6
7
14
8
Isotopes have different numbers of
protons
neutrons
electron
properties
How many neutrons does an atom of Nitrogen-13 have?
6
7
13
5
How many neutrons does an atom of the isotope Neon-22 have?
12
10
22
20
If an atom has 10 electrons, how many protons does it have?
0
1
10
5
How many electrons are in an atom with an atomic number of 50?
5
8
50
2
What is another name for ethene?
polyethene
ethylene
polyethylene
What are the correct steps in the production of plastics from crude oil?
Fractional Distillation of crude oil = Naphta > Steam cracking = Monomer (ethylene) > Polymerisation = Polymer (polyethylene - plastic pellets) > molded into objects
Fractional Distillation of crude oil = Naphta > Polymerisation = Polymer (polyethylene - plastic pellets) > Steam cracking = Monomer (ethylene) > molded into objects
Fractional Distillation of crude oil = Polymer (polyethylene - plastic pellets) > Polymerisation = Naphta > Steam cracking = Monomer (ethylene) > molded into objects
What are some of the challenges we face with recycling plastics?
more expensive than making new ones
it lowers the quality
it creates a bad smell
multiple types of plastics combined make it challenging
not every country or person does it
What is the real problem in regards to plastics?
we use too much
we don't recycle them
they are too cheap
we are running out
What is the meaning of non-biodegradable?
takes a long time to decompose
not made of bio-things
not good for the environment
What happens to non-biodegradable things?
end up in landfills
end up in the oceans
are recycled
nothing
What is the electron arrangement of Sodium?
2, 8, 1
2, 1
2, 8, 8
2
What is the electron arrangement of Aluminium?
2, 8, 3
2, 3
2, 8, 8
2
What is the electron arrangement of Neon?
2, 8
2, 10
2, 8, 8
2
What is the electron arrangement of Calcium?
2, 8, 8, 2
2, 8, 2
2, 8, 8
2
What is the electron arrangement of Fluorine?
2, 7
2, 8, 7
7
2
Name the following ionic compound: BeCl2
beryllium chlorine
beryllium II chloride
beryllium chloride
beryllium dichloride
What is the name of the compound Na2(SO4)?
Sodium sulfate
Sodium sulfide
Sodium sulfite
Sodium sulfuroxide
The name of the compound Ca3(PO4)2
calcium phosphate
tricalcium diphosphate
calcium phosphorus oxide
calcium phosphide
What is the correct formula for Calcium Phosphate?
Ca3(PO4)2
Ca3(PO4)
Ca2(PO4)
Ca2(PO4)2
What is the correct formula for aluminum nitrate?
Al2(NO3)3
Al(NO3)3
Al(NO3)2
Al2(NO3)4
What is the name of Al2O3?
aluminum oxide
dialuminum trioxide
aluminum III oxide
What is the correct formula for lithium fluoride?
Li2F3
Li2F
LiF
Li3F2
What is the correct formula for sodium oxide?
Na2O3
Na2O
Na3O
NaO3
What is the correct formula for magnesium nitride?
Mg2N3
Mg3N2
Mg2N
MgN3
What is the correct formula for aluminium chloride?
AlCl3
Al3Cl2
Al2Cl
AlCl2
