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AQA GCSE 9-1 Periodic Table Flashcards | StudBud
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AQA GCSE 9-1 Periodic Table
AQA GCSE 9-1 Periodic Table
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Revision Questions for AQA Chemistry GCSE unit C3.1 #aqa #chemistry #c31 #periodictable #gcse
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1
For halogens, the 7 electrons in the outer energy level are further from the nucleus...
so they react with non metals more easily
so reactivity increases down the group
so they react with metals more easily
so reactivity decreases down the group
2
When Group I metals react with non-metals, what colour are the salts formed?
lilac
all different colours
white
yellow
3
Give the symbol of an element with 3 electron shells
He
Na
Cl
C
4
What colour are the salts of transition metals?
colourless
blue
white
a wide variety of colours
5
How was Mendeleev's table changed after the discovery of protons, neutrons & electrons?
elements arranged as isotopes
elements arranged to the left of noble gases
elements aranged by similar properties
elements arranged by atomic number
6
Why was Newlands' table of elements called "periodic"?
It wasn't
They were published in periodic science journals
His colleague suggested the name
Similar properties occured at regular intervals
7
Which group of elements were not included at all in Mendeleev's table?
noble gases
alkali metals
transition metals
halogens
8
What was the key difference between Mendeleev's periodic table and Newlands'?
The columns were"groups" with similar properties
The elements were placed in order of atomic no. (proton no.)
Heleft gaps for elements he thought must exist.
Mendeleev had a dream
9
Why were some elements placed in inappropriate groups?
They weren't
Some elements had not been discovered
They were in order of atomic mass NOT atomic number
Some of the properties had not yet been identified
10
What are the products of the reaction of potassium with water?
KOH and oxygen
KOH & hydrogen gas
lilac
NaOH and hydrogen gas
11
In the modern periodic table, what do elements in the same group all have in common?
same number of electrons in the outer shell
they are very reactive
same number of neutrons in the nucleus
same number of electron shells
12
How do the chemical properties of the alkali metals change down the group?
reactivity increases
reactivity decreases
13
What is the charge on alkali metal ions?
+2
-1
+1
-2
14
Why was the discovery of gallium important?
Mendeleev discovered it
it was the first metal to melt in the hand
Mendeleev had correctly predicted its properties
It was discovered by a Frenchman
15
What are the Group VII elements usually called?
halogens
transition metals
alkali metals
noble gases
16
What discoveries lead to a change in the order of the elements in the periodic table?
macroatomic particles
subatomic particles
extra atomic particles
intra atomic particles
17
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
18
How did Newlands attempt to classify the elements?
in order of atomic mass
in order of atomic number
elements with similar properties in the same column
by arranging them on his piano
19
What is the name of the ions formed when halogens gain an electron?
halogen ions
halo ions
holy ions
halide ions
20
What are the group I metals usually called?
Alkali Earth Metals
Halogens
Alkali Metals
Transition Metals
