Sheet1
Single Best Answer Chemistry A Level Revision Questions
Question - max 120 characters
1 The atomic number is always equal to:
The number of electrons in a neutral atom is the
2 same as:
3 the number of nuetrons in an atom is the same as:
4 How many neutrons are in magnesium-25 atom?
5 What are isotopes?
6 which of the following is an isotope of carbon-12?
7 which of the following is true of the mass number
which combination of properties show the correct
8 atomic structure of 40K+ ?
which particle has a different number of electrons
9 from the other particles
10 which atom is not an isotope of Barium?
11 Orbiting the central region of an atom are negativel
12 The center portion of an atom is called a(n)
The smallest unit of matter that retains the
13 characteristics of an element is an:
14 An atom that loses or gains electrons is called a(n)
Isotopes of the same element have the same
15 number of:
Page 1
, Sheet1
Ionic bonding forms between ions like sodium and
16 chlorine because of:
Anions are ions that have a ______________ net
17 charge.
Cations are ions that have a ______________ net
18 An
charge.
extreme form of electron sharing occurs in the atomic
bonds of certain types of minerals
ifand
thecan
atomic number
affect of an
the luster of element is 6 andThese
these minerals. its mass number
bonds
19 involve
is 13, how manyatoms,
several protons are contained
which share in the nucleas.
ifseveral
the atomic number
electrons of anthem.
among element
Theisminerals
6 and itsproduced
mass number
also
is 13, how many neutrons are
tend to have dark streaks and are
20 contained in the nucleus?
more conductive. What is the name of the type of bonding
that produces this extreme electron
21 sharing?
Minerals are identified most commonly by using
22 their:
23 The most atom
The silicon common
has a mineral in Earth's
positive charge crust
of 4, and is has
oxygen
a negative charge of 2.
24 Accordingly, the ion group (SiO4) has a net charge of:
25 All silicate minerals contain the elements
26 The isotopes ofamagnesium,
nucleus of 23 24
12Mg and
11 Na atom contains
25
12 Mg,
both form ions with charge 2+. Which of the
27 following statements about these ions is true?
Which of the following represents a pair of
28 isotopes?
Which of the following species contains the same
29 number of electrons as neutrons?
30 Which particles are found in the nucleus?
31 What is the charge of a proton?
32 what is the electron configuration for sodium?
What
33 looking is the
at the mass electron
following of a neutron?
configuration:2.8.7, identify this atom's group and
34 period.
35 why does an atom have no overall charge?
what is an isotope? Atoms of the same element
36 with...
How many electrons can go on the second
37 shell(energy level)?
38 what is the charge of an electron?
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If an atom has 17 protons, how many electrons
39 must it have?
40 What is the overall charge of the nucleus?
41 What is the mass of an electron?
42 What does
The mass the mass
number number
for aluminium show?
is 27. The atomic number
for aluminium is 13. How many neutrons does aluminium
43 have?
44 What does the atomic number show?
45 What is the electron configuration for neon?
46 Why are lithium and sodium both in group 1?
Given the following information, which element(s) are most
47 likely
Whattoislose
theelectrons?
mass of a proton?
48 I.Which
Iodine particles
is a member of Group VII
contribute to (halides).
mass number?
If only one type of atom makes up a substance,
II. Strontium is located in the second column of the periodic
49 what
table. can you call this substance?
50 III. Selenium has six valence electrons.
Which is the symbol for the element that contains
51 six electrons in each of its neutral atoms?
52 What is the correct electron configuration for an at
53 Which element has a mass number of 12 and contai
Which of these atoms has the largest atomic
54 radius?
55 Which of these atoms has the smallest number of n
What is the correct order of the stages of Time of
56 Flight mass spectrometry?
In Mg2+ how many electrons are found in an s
57 subshell?
Which of the following elements has the lowest 1st
58 Ionisation Energy?
59 Which of the following statements is NOT correct?
60 How many protons are present in 1 atom of 14C?
Which ion has the same number of electrons as
61 83Kr but 1 less proton and 1 less neutron?
What is the maximum number of electrons that an
62 orbital in the 3p subshell can hold?
Which equation represents the 1st Ionisation
63 Energy of Bromine?
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Which change requires the largest amount of
64 energy?
Chlorine has two isotopes, 35Cl and 37Cl. The number of
molecular ion peaks in the mass spectrum of a
65 sample of Cl2 is
Which one of the following statements is not
66 correct?
Which one of the following is the electronic
67 configuration of the strongest reducing agent?
Assuming
An atom inthat chlorine
which exists of
the number as protons
two isotopes, and
is greater
that hydrogen and carbon
68 than the number of neutrons is exist as one isotope
each, how many molecular ion peaks will be
69 shown in of
Which one thethemass spectrum
following of C
atoms has 4H6
only Cl4unpaired
two ?
electrons in its ground (lowest energy)
70 state?
Which one of the following does not have a pair of s
electrons in its highest filled electron energy
71 sub-level?
Which one of the following explains why boron has
a lower first ionisation energy than beryllium?
72 Which one of the following ionisations requires less energy
than the first ionisation energy of
73 oxygen?
74 Which
In whichatom
one ofhas an incomplete
the following sub-shell?
pairs is the first ionisation
energyone
Which of element Y greaterlists
of the following than
thethat
firstofionisation energies
75 element X?
(in kJ mol−1
) of the elements Mg, Al, Si,
76 P and S
Which in this
one order?
of the following is the electronic configuration of
an element with a maximum oxidation
77 state of +5?
The electronic structure of an atom of an element
78 in Group 6 of the Periodic Table could be
79 all substances are made of ------------------.
80 an atom is the---------------that can exist
atoms of each element are represented by
81 a-------------
82 O. represents an atom of…...
83 Na represents an atom of ….......
84 there are about 100 different----------
85 an element is a substance that contains….
86 elements are shown in the------------
What is formed from elements by chemical
87 reactions
chemical reactions always involve te formation of
88 one or more ---------
Page 4
Single Best Answer Chemistry A Level Revision Questions
Question - max 120 characters
1 The atomic number is always equal to:
The number of electrons in a neutral atom is the
2 same as:
3 the number of nuetrons in an atom is the same as:
4 How many neutrons are in magnesium-25 atom?
5 What are isotopes?
6 which of the following is an isotope of carbon-12?
7 which of the following is true of the mass number
which combination of properties show the correct
8 atomic structure of 40K+ ?
which particle has a different number of electrons
9 from the other particles
10 which atom is not an isotope of Barium?
11 Orbiting the central region of an atom are negativel
12 The center portion of an atom is called a(n)
The smallest unit of matter that retains the
13 characteristics of an element is an:
14 An atom that loses or gains electrons is called a(n)
Isotopes of the same element have the same
15 number of:
Page 1
, Sheet1
Ionic bonding forms between ions like sodium and
16 chlorine because of:
Anions are ions that have a ______________ net
17 charge.
Cations are ions that have a ______________ net
18 An
charge.
extreme form of electron sharing occurs in the atomic
bonds of certain types of minerals
ifand
thecan
atomic number
affect of an
the luster of element is 6 andThese
these minerals. its mass number
bonds
19 involve
is 13, how manyatoms,
several protons are contained
which share in the nucleas.
ifseveral
the atomic number
electrons of anthem.
among element
Theisminerals
6 and itsproduced
mass number
also
is 13, how many neutrons are
tend to have dark streaks and are
20 contained in the nucleus?
more conductive. What is the name of the type of bonding
that produces this extreme electron
21 sharing?
Minerals are identified most commonly by using
22 their:
23 The most atom
The silicon common
has a mineral in Earth's
positive charge crust
of 4, and is has
oxygen
a negative charge of 2.
24 Accordingly, the ion group (SiO4) has a net charge of:
25 All silicate minerals contain the elements
26 The isotopes ofamagnesium,
nucleus of 23 24
12Mg and
11 Na atom contains
25
12 Mg,
both form ions with charge 2+. Which of the
27 following statements about these ions is true?
Which of the following represents a pair of
28 isotopes?
Which of the following species contains the same
29 number of electrons as neutrons?
30 Which particles are found in the nucleus?
31 What is the charge of a proton?
32 what is the electron configuration for sodium?
What
33 looking is the
at the mass electron
following of a neutron?
configuration:2.8.7, identify this atom's group and
34 period.
35 why does an atom have no overall charge?
what is an isotope? Atoms of the same element
36 with...
How many electrons can go on the second
37 shell(energy level)?
38 what is the charge of an electron?
Page 2
, Sheet1
If an atom has 17 protons, how many electrons
39 must it have?
40 What is the overall charge of the nucleus?
41 What is the mass of an electron?
42 What does
The mass the mass
number number
for aluminium show?
is 27. The atomic number
for aluminium is 13. How many neutrons does aluminium
43 have?
44 What does the atomic number show?
45 What is the electron configuration for neon?
46 Why are lithium and sodium both in group 1?
Given the following information, which element(s) are most
47 likely
Whattoislose
theelectrons?
mass of a proton?
48 I.Which
Iodine particles
is a member of Group VII
contribute to (halides).
mass number?
If only one type of atom makes up a substance,
II. Strontium is located in the second column of the periodic
49 what
table. can you call this substance?
50 III. Selenium has six valence electrons.
Which is the symbol for the element that contains
51 six electrons in each of its neutral atoms?
52 What is the correct electron configuration for an at
53 Which element has a mass number of 12 and contai
Which of these atoms has the largest atomic
54 radius?
55 Which of these atoms has the smallest number of n
What is the correct order of the stages of Time of
56 Flight mass spectrometry?
In Mg2+ how many electrons are found in an s
57 subshell?
Which of the following elements has the lowest 1st
58 Ionisation Energy?
59 Which of the following statements is NOT correct?
60 How many protons are present in 1 atom of 14C?
Which ion has the same number of electrons as
61 83Kr but 1 less proton and 1 less neutron?
What is the maximum number of electrons that an
62 orbital in the 3p subshell can hold?
Which equation represents the 1st Ionisation
63 Energy of Bromine?
Page 3
, Sheet1
Which change requires the largest amount of
64 energy?
Chlorine has two isotopes, 35Cl and 37Cl. The number of
molecular ion peaks in the mass spectrum of a
65 sample of Cl2 is
Which one of the following statements is not
66 correct?
Which one of the following is the electronic
67 configuration of the strongest reducing agent?
Assuming
An atom inthat chlorine
which exists of
the number as protons
two isotopes, and
is greater
that hydrogen and carbon
68 than the number of neutrons is exist as one isotope
each, how many molecular ion peaks will be
69 shown in of
Which one thethemass spectrum
following of C
atoms has 4H6
only Cl4unpaired
two ?
electrons in its ground (lowest energy)
70 state?
Which one of the following does not have a pair of s
electrons in its highest filled electron energy
71 sub-level?
Which one of the following explains why boron has
a lower first ionisation energy than beryllium?
72 Which one of the following ionisations requires less energy
than the first ionisation energy of
73 oxygen?
74 Which
In whichatom
one ofhas an incomplete
the following sub-shell?
pairs is the first ionisation
energyone
Which of element Y greaterlists
of the following than
thethat
firstofionisation energies
75 element X?
(in kJ mol−1
) of the elements Mg, Al, Si,
76 P and S
Which in this
one order?
of the following is the electronic configuration of
an element with a maximum oxidation
77 state of +5?
The electronic structure of an atom of an element
78 in Group 6 of the Periodic Table could be
79 all substances are made of ------------------.
80 an atom is the---------------that can exist
atoms of each element are represented by
81 a-------------
82 O. represents an atom of…...
83 Na represents an atom of ….......
84 there are about 100 different----------
85 an element is a substance that contains….
86 elements are shown in the------------
What is formed from elements by chemical
87 reactions
chemical reactions always involve te formation of
88 one or more ---------
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