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WorksheetsAtomic Structure/Bonding/Periodicity
Total questions: 73
Worksheet time: 41mins
Which of the following diagrams BEST illustrates bonding of nitrogen?
Which of the following statements about covalent compounds are TRUE?
They are mainly solids
They usually have low melting and boiling points
They are usually insoluble in water
They contain only ions
Which of the elements forms a chloride which is ionic in nature?
I
II
III
IV
The arrangements of electrons in atoms X and Y are 2,8,5 and 2,8,6 respectively. Which of the following options represents X and Y?
A
B
C
D
Which of the following describes the formation of a metallic bond? A metallic bond is formed when
anions are held together by negative electrons
metal atoms are held together by molecular forces
cations are held together by a sea of mobile electrons
positive metal ions are held together by a sea of anions
Which of the following elements does NOT form simple ions by gaining or losing electrons?
Carbon
Copper
Calcium
Chlorine
Which of the following elements has 7 electrons in its outer shell?
Hydrogen
Oxygen
Nitrogen
Chlorine
An atom has 20 electrons. When it ionizes, it has the same electronic configuration as
neon
argon
sodium
calcium
Which of the following statements BEST describes the difference between an atom and an ion?
An atom is electrically neutral but an ion is positively charged
An atom is electrically neutral but an ion is negatively charged
An atom contains equal numbers of protons and electrons whereas an ion contains more electrons than protons
An atom contains equal numbers of protons and electrons whereas an ion contains unequal numbers of protons and neutrons
Which of the following features are true about the arrangement of electrons, protons and neutrons in an atom?
Protons and neutrons are found in the nucleus
Electrons can be found anywhere outside the nucleus
The number of protons is the same as the number of electrons
The mass number of an element is the number of
neutrons in an atom of the element
protons and electrons in an atom of the element
neutrons and protons in an atom of the element
protons, neutrons and electrons in an atom of the element
'Ionic bond formation' results from the
donation of electrons from a metal to a non-metal to achieve stability
donation of electrons from a non-metal to achieve stability
attraction between the positively charged ions of a metal and a pool of electrons
sharing of electrons between the atoms of a metal and a non-metal to achieve stability
An ion with a single negative charge may be converted into a neutral atom by
losing a neutron
gaining a proton
losing an electron
gaining an electron
Which two of the elements when combined with each other form MAINLY ionic compounds?
I
II
III
IV
Which TWO of the following features are true about the arrangement of electrons, protons and neutrons in an atom?
Protons and neutrons are found in the nucleus.
Electrons can be found anywhere outside the nucleus.
The number of protons always equals the number of neutrons.
The number of protons always equals the number of electrons.
Which of the following features are usually true of covalent compounds?
Insoluble in water
Existing in the solid state
Easily boiled and melted
Which of the following halogens is a liquid at room temperature?
Bromine
Fluorine
Chlorine
Iodine
Which of the properties below will decrease down the group F, Cl, Br and I?
Atomic radius
Electronegativity
Oxidising power
Oxygen, 168O, occurs before neon, 2012Ne, in the periodic table because oxygen
is a better oxidising agent than neon
has fewer protons on its atom than neon
reacts with metals more readily than neon
has a smaller relative atomic mass than neon
Which of the following elements is MOST electropositive?
Zinc
Calcium
Aluminium
Magnesium
The particle X is an atom of
chlorine
nitrogen
oxygen
sulphur
Which particle represents an anion?
V
W
X
Y
The atomic number of Element Z is 13. In which group of the periodic table is it?
2
3
4
5
One way in which hydrogen resembles group 7 elements is that hydrogen
is a colourless gas like the halogens
is one electron short of a rare gas structure
donates its one electron very easily and forms an H+ ion
has its atoms held together by electrovalent bonds
Which of the following elements is MOST electropositive?
Aluminium
Copper
Magnesium
Zinc
The atomic number of an element is defined as the number of
electrons
protons
protons and neutrons
electrons and neutrons
Which of the following are physical properties of ionic substances?
High melting points
Soluble in organic solvents
Good conductors of electricity in the liquid state
An atom with atomic structure 2713X contains
14 protons, 13 neutrons
13 protons, 27 neutrons
13 protons, 14 neutrons
27 protons, 13 neutrons
Which of the following pairs of atoms has the same number of neutrons?
4018Ar and 4020Ca
3115P and 3216S
2412Mg and 126C
1680 and 199F
Barium is below calcium in Group II of the Periodic Table. When these metals react with water, the main difference in observation is the
type of gas evolved
rate of reaction
colour of the product
colour change with litmus
Covalent compounds can be formed between
a metal and a non-metal
a positive ion and a negative ion
two identical non-metal atoms, excluding the noble gases
two identical non-metal atoms, including the noble gases
Which set of elements forms molecules which contain two atoms?
Group 1 (Alkali Metals)
Group 2 (Alkaline Earth Metals)
The halogens (Group 7)
Period 3
Which set of elements has atoms with two electrons in their outer shells?
Group 1
Group 2
The halogens
Period 3
Which of the following trends would be observed in moving from left to right across Period 3 of the Periodic Table?
The melting points of the elements increase.
The nature of the oxides becomes increasingly acidic.
The elements become more electronegative.
4020X2+ represents a positive ion.
Select the correct number of neutrons and electrons in X.
A
B
C
D
The ability of an atom to form a cation increases
across a period
as the oxidation state increases
as electronegativity increases
as electropositivity increases
Sulfur and oxygen are in the same group of the periodic table because
they can react with each other
they can form covalent compounds
they have the same number of electrons in their outer shell
the atomic number of sulfur is 16 and the relative atomic mass of oxygen is 16
The arrangement of elements in the periodic table is based on
atomic number
mass number
relative atomic mass
relative molecular mass
Which diagram illustrates bonding in chlorine?
Which of the following is NOT true of the group of elements known as the halogens?
They are all non-metals.
They form negative ions by the loss of electrons from their atoms.
The boiling point of the elements increases as their atomic numbers increase.
The oxidizing power of the elements decreases as their atomic numbers increase.
Which of the following are physical properties of ionic compounds?
Insoluble in organic solvents
High melting points
Good conductors of electricity in the solid state
Good conductors of electricity in the liquid state
Which solid is an ionic compound?
Graphite
Iodine
Metallic iron
Sodium chloride
An atom can form an ion carrying a charge of 2+ by
gaining two electrons
gaining two protons
losing two protons
losing two electrons
Which of the following are physical properties of ALL ionic compounds?
Dissolve easily in water
Form coloured crystals
Good conductors of electricity in the liquid state
High melting point
An atom can form a negatively charged ion by
losing a proton
losing an electron
gaining a proton
gaining an electron
Which of the following bonds can be formed by an atom of hydrogen?
An ionic bond by losing an electron
An ionic bond by gaining an electron
A covalent bond by sharing a pair of electrons
Which of the following are physical properties of ALL simple covalent compounds?
Low melting point
Liquids and solids at room temperature and atmospheric pressure
Good conductors of electricity in the liquid state
Insoluble in water
Which of the following is a physical property of ALL covalent compounds?
Poor conductors of electricity in the liquid state
Have distinctive smells
Insoluble in water
Contain carbon, hydrogen and oxygen
Which of the following is a physical property of MOST covalent compounds?
Soluble in organic solvents
High melting point
Good conductor of electricity in the solid state
Good conductor of electricity in the liquid state
Which of the following diagrams BEST illustrates bonding in hydrogen bromide?
The number of shared electron pairs in the methane molecule (CH4) is
4
6
8
10
How many covalent bonds are there in a nitrogen molecule?
4
3
2
1
The lithium ion (Li+) has a mass number of 7 and an atomic number of 3. Which two of the following does the ion contain?
3 protons
3 neutrons
4 protons
4 neutrons
The atoms of element X contain 15 electrons. Which of the following elements is in the same group of the Periodic Table as element X?
Carbon
Chlorine
Nitrogen
Oxygen
Oxygen comes immediately before fluorine in the Periodic Table. Which of the following can you deduce from this?
It is slightly less reactive
It has a lower relative atomic mass
It forms diatomic molecules
It has one less electron in its outer electron shell
The atoms of element X contain nine protons. Which of the following elements will have similar chemistry to element X?
Sodium
Phosphorus
Chlorine
Argon
Aluminium has a mass number of 27 and an atomic number of 13. Which two of the following do its atoms contain?
27 electrons
14 neutrons
13 protons
14 electrons
Which of the following describes the form of the Group 0 (VIII) elements under normal conditions?
Single atoms
Molecules containing two atoms
Molecules containing long chains of atoms
Macromolecular structure
Which statement about groups in the Periodic Table is correct?
In group 6 reactivity decreases down the group
All elements in a period have the same number of electrons in the outer shell
All groups contain both metals and non-metals
In Group 7 the boiling point of the elements decreases down the group
The potassium ion (K+) has a mass number of 39 and an atomic number of 19. Which two of the following does the ion contain?
20 protons
19 protons
19 neutrons
20 neutrons
The atoms of element X contain 12 electrons. Which of the following elements is in the same group as element X?
Aluminium
Bromine
Calcium
Potassium
Nickel, Ni (mass number 59, atomic number 28) is after cobalt (mass number 59, atomic number 27), in the Periodic Table because
N comes after C in the alphabet
the atomic number of nickel is greater
the mass number of nickel is greater
nickel is more reactive than cobalt
Which solid is in the same group of the Periodic Table as iron?
Ammonium nitrate
Copper
Graphite
Sulfur
Which of the group 7 elements is a solid at room temperature and atmospheric pressure?
Bromine
Chlorine
Fluorine
Iodine
The bromide ion (Br-) has a mass number of 80 and an atomic number of 35. Which two of the following does the ion contain?
35 protons
45 electrons
45 neutrons
80 neutrons
The atoms of element X contain 8 protons. Which of the following elements will have similar chemistry to element X?
Argon
Iodine
Potassium
Sulfur
Which of the following describes a general property of the group 1 elements?
They react with water to give acidic solutions
They form compounds which are coloured
Their surfaces are oxidised by oxygen in the air
They have a very high melting point
Which of the following is a general property of the group 7 elements?
They all form ions which carry a single positive charge
They are all coloured elements
They all conduct electricity
They have a valency of 2+
Here are the electronic configurations of four elements. Which element will be the least reactive?
2.8.8
2.8.7
2.8.6
2.8.1
Cobalt comes before nickel in the periodic table because
it is more reactive than nickel
it is more magnetic
it forms more compounds than nickel
it has fewer protons in its atom than nickel
The magnesium ion (Mg2+) has a mass number of 24 and an atomic number of 12. Which two of the following does the ion contain?
14 protons
12 protons
12 neutrons
12 electrons
How many of the group 7 elements are liquids at room temperature and atmospheric pressure?
1
2
3
4
The atoms of element X contain five electrons. Which of the following elements is in the same group as element X?
Aluminium
Lithium
Oxygen
Sulphur
