The Periodic Table GCSE Chemistry AQA (higher)

C3 1 AQA GCSE Chemistry in the AQA revision guide.
I have made 75 questions on practically every sentence in this chapter.

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Who produced a periodic table with gaps for elements that had not yet been discovered?
Mendeleev
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In the modern periodic table, how are the electronic structures of elements in a group the same?
same number of electrons in outer shell
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When did Newlands propose his periodic table?
1863
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What was Newlands proposition?
the law of octaves
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What is the law of octaves?
similar properties repeated every 8th element
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who produced a table that became a basis for today's periodic table?
Mendeleev
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What were the early periodic tables based on?
element weights
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Why did scientists not accept the first periodic table?
properties did not match within groups
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When did Mendeleev propose his periodic table?
1869
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What was Mendeleev's proposition?
to leave gaps for the newly discovered elements
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What evidence made the later periodic table more acceptable?
later elements were discovered that fitted into the periodic table
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When did scientists find out about protons and electrons?
early 20th century
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Elements within a group have......................
similar chemical properties
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Why is this?
Because they have the same number of electrons in their outer shell
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the reactivity of metals..............as you go further down the group.
increases
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the reactivity of non-metals........as you go further down the group.
decreases
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what does the reactivity of the elements depend on?
number of total electrons
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as atoms get larger, outer electrons are....strongly attracted by the nucleus.
less
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when metals react, they.....electrons.
lose
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when non-metals react, they...electrons.
gain
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because metals (insert answer to Q22 here) electrons, their reactivity....as you go down the group.
increases
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because non-metals (insert answer to Q23 here) electrons, their reactivity....as you go down the group.
decreases
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group 1 metals are..............metals.
reactive
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Group 1 metals are........solids at room temperature.
soft
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Group 1 elements have.....melting and boiling points.
low
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(Q28), these.............as you go down the group.
decrease
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why does it/do they float?
they have low densities
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Group 1 elements.......electron(s) in reactions to form ionic compounds.
lose
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What is the charge like for these ionic compounds of group 1 elements?
+
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Group 1 metals react with halogens to form what?
white colourless compound (salt)
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Why are group 1 elements called "alkali metals"?
with water they produce a strong alkali.
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What group are Halogens?
7
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Halogens are..................
Non-metallic
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Halogens have...........melting and boiling points.
low
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these...............going down the group.
increase
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What is Florine at room temperature?
a pale yellow gas
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What is Chlorine at room temperature?
a green gas
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What is bromine at group temperature?
a red-brown liquid
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What is iodine at room temperature?
a grey solid
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What do the halogens form ionic compounds with?
metals
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What is their ionic charge?
1-
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What do halogens bond covalently with?
non-metals
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Where are the transition elements found?
between groups 2 & 3
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The transition elements are all................
metals
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if you answered "false" to Q60, what is the exception?
mercury
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If you answered "false" to Q61, what is the exception?
with one exception, they have higher melting and boiling points than the alkali metals.
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What are transition elements useful as?
building materials
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they are........conductors of heat and electricity.
good
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Transition metals have............densities.
high
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Transition elements form........ions.
positive
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What is the ionic charge for transition elements?
they vary.
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transition metals have a.......number of electrons in their highest occupied energy level.
small
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Transition metals have a(n)............lower energy level.
incomplete
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The lower energy level can hold......more electrons for elements beyond a certain element.
10
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What is the element mentioned in the previous question?
Calcium
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Compounds of transition metals are often..................
bightly coloured
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Other cards in this set

Card 2

Front

In the modern periodic table, how are the electronic structures of elements in a group the same?

Back

same number of electrons in outer shell

Card 3

Front

When did Newlands propose his periodic table?

Back

Preview of the front of card 3

Card 4

Front

What was Newlands proposition?

Back

Preview of the front of card 4

Card 5

Front

What is the law of octaves?

Back

Preview of the front of card 5
View more cards

Comments

jane

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this would be more useful, if it told you the correct answers if you failed to answer one, or answered one incorrectly

Some like it hot

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you can press the "show the answers" button at the bottom....

Leslie

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A very useful quiz, hopefully now I'll stand half a chance in my unit 3 mock tomorrow!! :)

LivK

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Thankyou; a detailed quiz which shows me where I'm going wrong :)

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