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WorksheetsIB Chemistry S2
Total questions: 25
Worksheet time: 26mins
Name
Class
Date
1.
What is the mass of a proton and a neutron?
a)
1amu
b)
2grams
c)
13amu
d)
10cm
2.
This causes the mass of the nucleus to increase.
a)
adding an electron
b)
adding a neutron
c)
more orbitals
d)
adding negatively charged particles
3.
Has a mass of 1/200th the mass of a proton.
a)
electron
b)
neutron
c)
nucleus
d)
electron cloud
4.
What are the maximum number of electrons that go on the first 3 energy levels?
a)
2,4,16
b)
2,8,18
c)
4,8,12
d)
3,4,6
5.
What charge does the nucleus have and why?
a)
positive - the neutrons do not have a charge
b)
positive - the neutrons and protons are positively charged particles
c)
neutral - the neutral charge dominates the positive charge
d)
neutral - electrons cancel out the positive charge of the atom
6.
An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.
a)
20
b)
10
c)
5
d)
25
7.
An atom has 13 protons, 15 neutrons and ___ electrons what is its mass number?
a)
13
b)
26
c)
28
d)
15
8.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
9.
Which scientist conducted experiments using alpha particles and thin gold foil, which later helped him develop his model for the atom?
a)
Ernest Rutherford
b)
Kneels Bore
c)
Niels Bohr
d)
Earnest Rutherfraud
10.
Which scientist discovered the electron, which helped him develop a model of the atom?
a)
Niels Bohr
b)
John Dalton
c)
Ernst Rutherford
d)
J.J Thompson
11.
What is the shape of a p orbital?
a)
sphere
b)
it's just too complex to thing about it
c)
dumbbell
d)
pyramidal
12.
Which orbital has the least amount of energy?
a)
p orbital
b)
d orbital
c)
s orbital
d)
What is an orbital?
13.
How many electrons can each p orbital hold?
a)
6
b)
3
c)
2
d)
4
14.
How many d orbitals are there in a given sublevel?
a)
1
b)
3
c)
5
d)
7
15.
How many total electrons can the f orbitals in a sublevel hold?
a)
2
b)
14
c)
6
d)
10
16.
These orbitals are found in the transition metals.
a)
s
b)
p
c)
d
d)
f
17.
This orbital diagram represents:
a)
C
b)
B
c)
N
d)
O
18.
What is incorrect about this orbital diagram?
a)
Both arrows in the 2p box should be pointing up
b)
There is nothing incorrect with this diagram
c)
In the there should only be 1 orbital in the first 2p box and one in the 2nd 2p box
d)
All the arrows should be pointing up.
19.
Why is the relative atomic mass not a whole number?
a)
Nuclei can contain partial neutrons.
b)
Nuclei can contain varying number of electrons.
c)
Nuclei can contain partial protons.
d)
Nuclei can contain different numbers of neutrons and be the same element.
20.
What property is different between two isotopes?
a)
chemical properties
b)
physical properties
c)
biological properties
21.
What causes deflection in the mass spectrometer?
a)
magnetic field
b)
electric field
22.
How are atoms ionised by the mass spectrometer?
a)
by being hit with high-speed electrons
b)
by having electrons added to them
c)
by exposing to an electric field
23.
What affects the deflection in a mass spectrometer?
a)
the mass and charge of the ion
b)
the mass of the ion only
c)
the charge of the ion only
d)
the velocity of the ion
24.
What does Z stand for in the shorthand notation for an atom or ion?
a)
mass number
b)
atomic number
c)
charge
25.
What does A stand for in the shorthand notation for an atom or ion?
a)
mass number
b)
atomic number
c)
charge
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