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AQA C3.1 Periodic Table Chemistry Flashcards | StudBud
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AQA C3.1 Periodic Table Chemistry
AQA C3.1 Periodic Table Chemistry
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Revision Questions for AQA Chemistry GCSE unit C3.1 #aqa #chemistry #c31 #periodictable #gcse
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1
in the modern periodic table, what do elements in the same group all have in common?
same number of elevtrons in the outer shell
same number of electron shells
they are very reactive
same number of neutrons in the nucleus
2
What were "Dobereiner's Triads"?
Something the doctor was treating him for
An attempt to group elements with similar properties
3
When Group I metals react with non-metals, what colour are the salts formed?
yellow
white
all different colours
lilac
4
Why does reactivity increase further down the group?
the outermost electron wnats a full outer shell
the outermost electon has a lower activation energy
the outermost electron is shielded by the inner electrons
the outermost electron is further from the nucleus
5
What discoveries lead to a change in theorder of the elements in the periodic table?
intra atomic particles
macroatomic particles
subatomic particles
extra atomic particles
6
How do the physical properties of the alkali metals change down the group?
reactivity increases
melting point lowers
melting point rises
reactivity decreases
7
Which group of elements were not included at all in Mendeleeve's table?
halogens
noble gases
alkali metals
transition metals
8
Which of these industrial processes does NOT use a transition metal catalyst?
Haber Process
Making margerine
hydration of ethene
decomposition of hydrogen peroxide
9
Which halogen sublimes if warmed gently?
Fluorine
Chlorine
Bromine
Iodine
10
Do you have a periodic table handy?
Of course
I've already memorised it
erm..no
I'm just getting one
11
Suggest the formula for vanadium (v) oxide
V 2 O 3
V 2 O 2
V 2 O 5
V 3 O 2
12
What are the Group VII elements usually called?
noble gases
transition metals
halogens
alkali metals
13
Why was the discovery of gallium important?
It was discovered by a Frenchman
Mendeleev had correctly predicted its properties
it was the first metal to melt in the hand
Mendeleev discovered it
14
The acid of which halogen features a lot in Breaking Bad which you won't have seen (cert.18)?
iodine
bromine
fluorine
chlorine
15
Which of these is NOT a key physical property of the alkali metals?
low density
low melting point
react with water
soft
16
chlorine gas + potassium iodide -->
no reaction
potassium chloride & iodine
17
What was the key difference between Mendeleev's periodic table and Newlands'?
Mendeleev had a dream
Heleft gaps for elements he thought must exist.
The columns were"groups" with similar properties
The elements were placed in order of atomic no. (proton no.)
18
Which halogen is this?
Fluorine
Bromine
Iodine
Chlorine
19
Why was Newlands' table of elements called "periodic"?
similar properties occured at regular intervals
It wasn't
His colleague suggested the name
They were published in periodic science journals
20
Which halogen appears in the title sequence of Breaking Bad which you won't have seen (cert.18)
bromine
chlorine
iodine
fluorine
21
Bromine + potassium iodide -->
potassium bromide & iodine
no reaction
22
What is the charge on alkali metal ions?
-1
+1
-2
+2
23
What colour are the salts of transition metals?
white
a wide variety of colours
blue
colourless
24
What is the name of the ions formed when halogens gain an electron?
halo ions
halide ions
halogen ions
holy ions
25
Bromine + potassium chloride -->
potassium bromide & chlorine gas
no reaction
26
How was Mendeleeve's table changed after the discovery of protons, neutrons & electrons?
elements aranged by similar properties
elements arranged by atomic number
elements arranged as isotopes
elements arranged to the left of noble gases
27
How did Newlands attampt to classify the elements?
in order of atomic mass
by arranging them on his piano
in order of atomic number
elements with similar properties in the same column
28
For halogens, the7 electrons in the outer energy level are further from the nucleus...
so they react with non metals more easily
so reactivity decreases down the group
so reactivity increases down the group
so they react with metals more easily
29
What are the products of the reaction of potassium with water?
lilac
KOH and oxygen
NaOH and hydrogen gas
KOH & hydrogen gas
30
How do the chemical properties of the alkali metals change down the group?
reactivity increases
reactivity decreases
31
What are the group I metals usually called?
Alkali Metals
Transition Metals
Alkali Earth Metals
Halogens
32
Why were some elements placed ininappropriate groups?
some elements had not been discovered
They weren't
<p>Some of the properties had not yet been identified</p>
They were in order of atomic mass NOT atomic number
