WorksheetsREVISION 3
Total questions: 10
Worksheet time: 3hrs 30mins
Which ion has the most shells that contain electrons?
Al3+
Be2+
N3–
S2–
The table gives data about four substances.
Which substance could be an ionic compound?
A
B
C
D
The table shows the electron structures of four elements.
Which pair of atoms will form a covalent substance?
two atoms of W
two atoms of X
an atom of W and an atom of X
an atom of Y and an atom of Z
How does a magnesium atom form a bond with an oxygen atom?
by giving one pair of electrons to the oxygen atom
by sharing one pair of electrons, both electrons provided by the magnesium atom
by sharing two pairs of electrons, both pairs provided by the oxygen atom
by sharing two pairs of electrons, each atom donating one pair of electrons
Which of the following contains the same number of electrons as an atom of neon?
Cl–
Li
Li+
O2–
What is the most suitable way of investigating the different food colourings in some drinks?
crystallisation
filtration
fractional distillation
paper chromatography
Which statement about an atom of X is correct?
It is in Group III of the Periodic Table.
It is in Group VII of the Periodic Table.
The total number of protons and electrons is 6.
The total number of protons and neutrons is 10.
How many electrons are shared in the covalent bonding of a methane molecule?
2
4
6
8
Which statement about the alkali metals is true?
they form covalent bonds with Group VII elements
they form oxides on reacting with water
their melting points decrease on descending Group I
their reactivities decrease on descending Group I
Which gas is present in the light bulb?
argon
krypton
nitrogen
oxygen
