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WorksheetsChapter 2 ENV112
Total questions: 10
Worksheet time: 10mins
An ion with 5 protons, 6 neutrons and a charge of +3 has an atomic number of
3
5
6
8
Identify the mass number of an atoms which contains 28 protons, 28 electrons and 34 neutron.
28
56
62
34
Quantum number value for 2p subshell are ______.
n = 1, l = 0
n = 1, l = 1
n = 2, l = 0
n = 2, l = 1
The maximum number of electrons that can accommodate by d orbital is
2
10
8
14
Which quantum number does 2s and 2p have in common?
n
l
s
m
Element Z has the electron configuration of 1s2 2s2 2p3. identify the group element Z belong.
2
3
5
7
How many electron valance does element with atomic number 11 possess?
1
2
3
4
What is subshell notation for 1?
d
f
p
s
Consider the 3p electron of the sulfur atom (atomic number =16). Identify the number of unpaired electrons.
0
1
2
3
An element X has two isotopes with An element Z has two isotopes with atomic masses of 28 and 30 and relative abundances of 70% and 30% respectively.
28.0
28.4
28.6
28.8
