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Atomic Structure and the Periodic Table Flashcards | StudBud
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Atomic Structure and the Periodic Table
Atomic Structure and the Periodic Table
40 terms
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#wjec #chemistry #year10 #atomicstructure
Flashcards
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Questions
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Answers
1
Where are the
metals
in the periodic table?
In the middle
On the left
On the left and in the middle
On the right
2
A
vertical column
of elements in the periodic table
Period
Group
3
Define
ductile
Can be pulled into wires
Allows electricity to travel through
Can be scratched easily
Can be flattened into shets
4
Sulfur is in group six period three because its atoms have...
Three occupied shells with six in the outermost
Six occupied shells with three in the outermost
5
Particles with the
same mass
Protons and neutrons
Neutrons and electrons
Protons, neutrons and electrons
Protons and electrons
6
Which describes most
non-metals
?
Low mp and bp
Malleable
Good conductors of heat & electricity
All three
7
How many electrons can fit into the
first shell
?
8
18
2
8
Magnesium has an
atomic number
12. What does this tell us?
It has 12 protons & 12 electrons
It has 12 electrons
It has 12 atoms
It has 12 protons
9
Which describes most
metals
?
Dense
Good conductors of heat & electricity
All three
Shiny
10
How do you work out the
number of neutrons
in an atom's nucleus?
Atomic number - mass number
Mass number - atomic number
It's the same as the atomic number
It's the same as the mass number
11
Relative
charge
on a
neutron
-1
+1
0 (neutral)
12
Which is a
semi-metal
?
Boron
Astatine
All three
Silicon
13
Negative ions have more protons than elecrtons
False
True
14
Relative
charge
on a
proton
0 (neutral)
+1
-1
15
Which particles are found in the
shells
(orbits)?
Neutrons
Protons
Electrons and protons
Electrons
16
Define
dense
A bit thick
Not easily scratched
Reflects light especially when polished
Lots of particles in a small space
17
Which describes a
negatively
charged
ion
?
It has lost electrons, so has fewer electrons than protons
It has gained electrons, so has more electrons than protons
18
Which best describes a
semi-metal
?
Has properties like non-metals
Has properties like metals
Has properties like both metals and non-metals
19
Particles found in the
nucleus
of an atom
Neutrons and electrons
Atoms
Protons and neutrons
Protons and electrons
20
Positive ions have more electrons than protons
True
False
21
Carbon has 6 protons. What is its
electronic structure
?
2, 4
2 ,2, 2
4, 2
3, 3
22
Where are the
non-metals
in the periodic table?
At the bottom
At the top
On the right
On the left
23
A substance made from only
one type
of atom
molecule
compound
element
atom
24
Define
malleable
Allows heat to travel through
Can be flattened into sheets
Not easily scratched
Can be pulled into wires
25
Negative ions have more electrons than protons
False
True
26
Lithium and nitrogen are in period two because their atoms have two occupied shells of electrons
True
False
27
How does a Br atom become a Br
-
ion?
By losing an electron
By losing a proton
By gaining a neutron
By gaining an electron
28
Why is calcium in
group 2
?
It has 2 shells of electrons
It has 2 electrons in its outermost shell
It has 2 electrons in each shell
29
Isotopes
are atoms of the same element with the.........
...same number of protons and neutrons
...same number of protons but different numbers of electrons
...same number of protons and electrons
...same number of protons but different numbers of neutrons
30
Why is chlorine in
period 3
?
There are three shells of electrons
There are three electrons in the outermost shell?
There are three electrons in each shell
31
Particles present in
equal numbers
in an
atom
Protons and electrons
Electrons and neutrons
Protons and neutrons
Protons, neutrons and electrons
32
Relative
charge
on an
electron
+1
0 (neutral)
-1
33
How does an atom of Ca become a Ca
2+
ion
By gaining a proton
By gaining two protons
By losing two electrons
By losing an electron
34
A
horizontal row
of elements in the periodic table
Period
Group
35
Max. number of electrons in the
second and third
shells
18
2
8
36
Outermost shells of the
group 0
elements
Full
Empty
Half-full
37
Calcium and potassium are in group four because their atoms have four electrons in the outer shell
False
True
38
Which best describes the properties of
silicon
?
Shiny and a good conductor like most metals
Dull and a poor conductor like most non-metals
Shiny like a metal but brittle like a non-metal
Malleable and ductile like most metals?
39
The
centre
of an atom
The middle
Necleus
Nucleus
Nucleas
40
Positive ions have more protons than electrons
True
False
