WorksheetsYear 10 Chemistry
Total questions: 127
Worksheet time: 4hrs 14mins
A bond between a metal and a nonmetal is called a(n)
covalent bond
ionic bond
metallic bond
transfer bond
Al3+ O2-
In the formation of ionic bonds, the electrons will be ____________ between metal elements to non-metal elements.
shared
transferred
Lithium is in group 1 of the periodic table, which ion would it form?
Li-
Li2-
Li+
Li2+
Oxygen is in group 6A (or 16) of the periodic table, which ion would it form?
O-
O6+
O2-
O2+
A positively charged ion is called what?
anion
onion
cation
dogion
How many protons and electrons does a P3- ion have?
15 protons and 15 electrons
15 protons and 18 electrons
18 protons and 15 electrons
15 protons and 12 electrons
What is the correct name for the N3- ion?
nitrogen
nitride
nitrogen (III)
nitrate
What is the symbol for an ion with 4 protons and 2 electrons?
Be2+
He
Be
Be2-
Which of the following is the best Lewis structure for the chloride (Cl-) ion?
Which of the following is the best Lewis structure for the sodium (Na+) ion?
What is the best way to tell if a substance is an ionic compound?
if it doesn't break when hit with a hammer, it's likely ionic
if it melts at a low temperature, it's likely ionic
if it is malleable and conducts electricity as a solid, it's likely ionic
if it doesn't conduct electricity as a solid but does conduct electricity when dissolved in water, it's likely ionic
How many VALENCE ELECTRONS does Chlorine have?
2
7
8
10
17
What is the correct formula for Sodium Chloride?
SCl
NaCl
SC
NaCl2
Name this ionic compound: Al2O3
Dialuminum oxide
Aluminum oxygen
Oxygen Aluminide
Aluminum oxide
Cations _______ electrons, becoming _______ charged.
Gain; positively (+)
Gain; negatively (-)
Lose; positively (+)
Lose; negatively (-)
Anions ____ electrons, becoming _____ charged.
Gain; positively (+)
Gain; negatively (-)
Lose; positively (+)
Lose; negatively (-)
Write the chemical formula for K and Br (potassium bromide).
KBr
K2Br
KBr3
KBr2
Write the chemical formula for Na and S (sodium sulfide).
NaS
S2S2
Na2S
NaS2
Metals (like Na) typically _____ electrons in the formation of ionic bonds.
Gain
Lose
Keep the same
Nonmetals (like Cl) typically ____ electrons when they form ionic bonds.
Gain
Lose
Keep the same
Lead Chloride is an ionic compound, made up from Pb2+ ions and Cl- ions. Which is the correct formula for this compound?
PbCl3
PbCl
PbCl4
PbCl2
Magnesium Hydroxide is an ionic compound made up from Mg2+ and OH- ions. Which is its correct formula?
MgOH
MgOH2
Mg(OH)2
MgO
What is the correct formula for aluminum hydroxide?
AlOH
Al2(OH)3
Al3(OH)2
Al(OH)3
Al(OH)2
In the compound CoSO4, what is the charge on cobalt?
+4
+2
-2
-1
Which is the correct formula for aluminum sulfide?
AlS
Al3S2
S3Al2
Al2S3
Which of the following is true for ionic bonding & ionic compounds?
They must be made of ions with like charges.
The negative ion must be written first.
Compounds must have an overall charge of zero.
They are made of metals and nonmetals.
The positive ion must be written first.
Oxygen has (a) valence electrons.
What is the charge of ion "X" in the formula XF3?
+3
-3
+1
-1
What is the charge of ion "X" in CaX?
+1
-1
+2
-2
Which of the following pairs of elements will NOT form an ionic compound?
sodium and fluorine
phosphorous and aluminum
potassium and magnesium
strontium and oxygen
The melting points of covalent molecules are:
very high
high
medium
low
Which of the following solids will conduct electricity
Carbon
Magnesium
Iodine
Sugar
What is ionic bonding?
Bonding that is the result of two elements sharing electrons
Bonding involving only one atom
Bonding that is the result of an exchange of electrons between a metal and a nonmetal
Bonding between two metals
What is Covalent Bonding?
Bonding that is the result of two nonmetals sharing electrons
Bonding between two metals
Bonding that is the result of a nonmetal and a metal exchanging electrons
Bonding between more than two elements
Which of the following is true about Ionic Bonds? (select ALL TRUE options)
High melting point
Low melting point
Can dissolve in water
Cannot dissolve in water
Can conduct electricity
Which of the following is true about Covalent bonds? (select ALL true options)
High melting point
Low melting point
Cannot conduct electricity
Can conduct electricity
Excellent conductors as solid and liquid due to a sea of delocalised electrons.
covalent
metallic
ionic
Giant structures with high melting and boiling points but only conduct electricity when molten or dissolved in a solution.
Covalent
Metallic
Ionic
Typically, atoms gain or lose electrons to
exchange energy.
make ions.
complete the Octet rule.
balance the charges to zero.
The particles responsible for chemical bonding are
protons.
cations.
electrons.
valence electrons.
Why do atoms share electrons in covalent bonds?
to become ions and attract each other
to have a noble-gas electron configuration
to increase their atomic numbers
to lose extra electrons.
Which particle is responsible for bonding?
Protons
Electrons
Neutrons
Nucleus
This Lewis Dot Structure for water is correct
True
False
Is this picture of the lewis dot stucture of Potassium Iodide correct?
Yes
No
Water (H2O) is...
Ionic
Covalent
Potassium Chloride is...
Ionic
Covalent
Potassium Sulfate (K2SO4) is...
Ionic
Covalent
Ammonium (NH4) is...
Ionic
Covalent
What is the correct formula for Calcium Oxide?
CaO
Ca2O
CaO2
CaO3
What is the correct formula for Carbon Dioxide?
C2O2
CO2
C2O
CO3
If an atom has no charge, which of the following must be true?
It has more neutrons than protons or electrons.
There are only neutrons inside the atom.
Its number of protons is equal to its number of electrons.
The neutrons in the atom outnumber the electrons and protons.
Which of these are an ion?
3 protons, 3 neutrons, 3 electrons.
8 protons, 8 neutrons, 8 electrons
2 protons, 3 neutrons, 2 electrons
6 protons, 6 neutrons, 7 electrons
Metals have positive ions in a ‘sea of electrons’. Which metal atom provides the most electrons for the sea?
Aluminium
Sodium
Calcium
Magnesium
Which statement describes the structure of copper?
It has a lattice of negative ions in a ‘sea of electrons’.
It has a lattice of negative ions in a ‘sea of protons’.
It has a lattice of positive ions in a ‘sea of electrons’.
It has a lattice of positive ions in a ‘sea of protons’
The structure of copper is described as a lattice of positive ions in a ‘sea of electrons’.
Which statements are correct?
Copper has a high melting point because of the strong electrostatic attraction between the positive ions and the ‘sea of electrons’.
Copper is malleable because the layers of atoms in the lattice can slide over each other.
Copper atoms can be oxidised to form copper ions by losing electrons.
Copper is a metallic element.
Which statements about copper are correct?
Copper is malleable because layers of ions are in fixed positions and cannot move.
The structure of copper consists of negative ions in a lattice.
Copper conducts electricity because electrons can move through the metal.
Electrons hold copper ions together in a lattice by electrostatic attraction.
Which statement about metals is correct?
Layers of positive ions can slide over each other making metals malleable.
Metallic bonding consists of a lattice of negative ions in a sea of delocalised electrons.
Metallic bonding consists of a lattice of positive ions in a sea of delocalised negative ions.
Metals conduct electricity because positive ions are free to move.
Which statement describes metallic bonding?
The attraction between a lattice of negative ions and delocalised protons.
The attraction between a lattice of positive ions and delocalised electrons.
The attraction between delocalised protons and electrons.
The attraction between oppositely charged ions.
Which statement about metals is not correct?
Metals are malleable because the metal ions can slide over one another.
Metals conduct electricity because electrons can move through the lattice.
Metals consist of a giant lattice of metal ions in a ‘sea of electrons’.
Metals have high melting points because of the strong attraction between the metal ions.
The diagram shows metallic bonding.
Which labels are correct?
X: atomic nucleus
Y: outer electron
X: metal atom
Y: mobile electron
X: metal cation
Y: mobile electron
X: positive ion
Y: negative ion
The diagram represents the general structure of a solid Z.
What is Z?
aluminium
iodine
silicon dioxide
sulfur
X is a solid at room temperature.
X has a high melting point.
Solid X conducts electricity.
Which diagram shows how the particles are arranged in solid X?
Which element has the highest electronegativity?
On the periodic table, the PERIODS are
the rows that go left to right.
the columns that got top to bottom.
the little spot at the end of a sentence.
On the periodic table, the GROUP or FAMILY are
the rows that go left to right.
the columns that got top to bottom.
your people that you have a lot in common with.
The metals are located
to the left of the stair step.
to the right of the stair step.
on and around the stair step.
The non-metals are located
to the left of the stair step.
to the right of the stair step.
on and around the stair step.
Metals are MOSTLY _____ at room temperature.
solid
liquid
gas
How are the elements on the periodic table arranged?
Atomic mass
Atomic number
State of matter
Type of element (metal, nonmetal, metalloid)
Valence electrons are
the number of electrons in the outer most energy shell.
the number of protons in the nucleus.
the atomic mass.
total number of electrons.
How do you find the number of valence electrons in an atom?
Look at the group it's in, but SKIP THE DIP.
Look at the period it's in.
Look at the group it's in.
Subtract the neutrons from electrons.
How many valence electrons does phosphorus (P).
3
5
15
31
Which of the following elements has 7 valence electrons?
Sodium (Na)
Aluminum (Al)
Fluorine (Fl)
Calcium (Ca)
Which of the following is a metal?
Calcium (Ca)
Neon (Ne)
Oxygen (O)
Sulfur (S)
Chlorine is what state of matter?
solid
liquid
gas
Nitrogen is a
metal.
nonmetal.
metalloid.
What is the name of the family that is highlighted?
Alkali Metal Family
Halogen Family
Noble Gas Family
Transition Metal Family
Which element has 3 valence electrons?
A
B
E
C
To which group does this atom belong?
1
3
13
11
