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A Level Chemistry The Periodic Table Flashcards | StudBud
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A Level Chemistry The Periodic Table
A Level Chemistry The Periodic Table
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OCR A Level Chemistry The Periodic Table #alevel #chemistry #ocr #periodictable
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Questions
15
Answers
1
What is the trend in ionisation energy down a group?
Increases
There is no trend
Decreases
2
The first ionisation energy is the energy needed to...
remove enough electrons to form 1 mole of gaseous atoms
change 1 mole of electrons into 1 mole of gaseous atoms
turn 1 mole of gaseous atoms into 1 mole of electrons
remove 1 mole of electrons from 1 mole of gaseous atoms
3
What do periods show?
Their family
Patterns in what they look like
What elements will react with each other
Repeating trends in physical and chemical properties
4
The drop in IE between Groups 2 and 3 is due to...
Increased nuclear charge
p Orbital repultion
Sub-shell structure
Repulsion
5
What is the trend in ionisation energy across a period?
There is no trend
Decreases
Increases
6
How does atomic radius affect ionisation energy?
electrons close to the nucleus are more strongly attracted
Electrons close to the nucleus are less strongly attracted
7
What do p-block elements have an outer shell electron configuration of?
s2p1
s2p6
s2p1 to s2p6
s2p1 or s2p6
8
How does nuclear charge affect ionisation energy?
Less protons in the nucleus, - charger, weakper attraction
more protons in the nucleus, + charge, stronger attraction
9
What is the correct equation for the first ionisation energy of oxygen?
O(g) → O2+(g) + e-
O+(g) → O2+ (g) + e-
O(g) → O+(g) + e+
O (g) → O+ (g) + e-
10
What factors affect ionisation energy?
Nuclear charge, atomic radius, shielding
Nuclear charge, mass number, moles
Atomic radius, reactivity, shielding
Atomic radius, mass number, moles
11
What do s-block elements have an outer shell electron configuration of?
s1 or s2
s3
s1
s2
12
How does the Periodic Table arrange the elements?
By increasing neutron number
By increasing mass
By increasing atomic (proton) number
By decreasing atomic (proton) number
13
What do the d-block elements have electron configurations of?
d10
d1
In which d sub-shells are being filled
d5
14
The drop in I.E. between groups 5 and 6 is due to...
Additional shielding
p Orbital Repulsion
Nuclear charge
Sub-Shell structure
15
How does shielding affect ionisation energy?
increased pull towards the nucleus with more electrons
+ electrons decreases the pull of the nucleus,less attracted
