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Worksheetsgrade 9 science covalent bonding
Total questions: 8
Worksheet time: 6mins
Covalent bonding involves
metal atoms losing and gaining electrons
non-metal atoms losing electrons
non-metal atoms sharing electrons
metals gaining electrons
An sulphur atom has 6 valence electrons. Two sulphur atoms will bond by forming a
single covalent bond
double covalent bond
triple covalent bond
ionic bond
The diagram shows the electron dot/cross diagram for phosphorous trichloride. Which one of the following best describes the bonds?
3 single bonds
3 double bonds
1 single and 2 double bonds
2 single and 1 double bond
The Lewis structure for silicon disulphide is shown. Which one of the following is correct?
there are four single bonds
a total of 4 electrons are bring shared
there are two single bonds
a total of 8 electrons are being shared
Bromine atoms form the molecule Br2. Each bromine atom has 7 valence electrons. How many electrons will each bromine atom share with the other bromine atom?
1
2
3
7
Carbon and hydrogen for the compound shown in the diagram. Which one of the following best represents the formula of the covalent compound?
C2H5OH
CH6CO
H6C2OH
COHC4H4
Which one of the following is the correct Lewis dot structure for sulphur difluoride?
A
B
C
D
Which one of the following is the correct Lewis structure for the nitrogen molecule (N2)?
A
B
C
D
