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- 1. Multiple Choice
The electronic structures of atoms P and Q are shown. P and Q react to form an ionic compound. What is the formula of this compound?
Q2P
P2Q
P2Q6
Q2P6
- 2. Multiple Choice
The electronic configuration of an ion is 2.8.8. What could this ion be?
A
B
C
D
- 3. Multiple Choice
How many electrons are shared between the atoms in a molecule of methane, CH4, and in a molecule of water, H2O?
Methane = 4
Water = 2
Methane = 4
Water = 4
Methane = 8
Water = 2
Methane = 8
Water = 4
- 4. Multiple Choice
Which compound has both ionic and covalent bonds?
ammonium chloride
carbon dioxide
ethyl ethanoate
sodium chloride
- 5. Multiple Choice
The diagram shows the positions of some elements in the Periodic Table. Which elements form ionic bonds with oxygen?
W only
W and X only
Z only
Y and Z only
- 6. Multiple Choice
The diagram shows an outline of part of the Periodic Table. Which two elements could form a covalent compound?
W and X
W and Y
X and Y
X and Z
- 7. Multiple Choice
The proton numbers of four elements are shown. Which element forms a singly charged positive ion in its salts?
A (proton number = 34)
B (proton number = 35)
C (proton number = 36)
D (proton number = 37)
- 8. Multiple Choice
Which compound has ionic bonds?
hydrogen chloride
methane
sodium chloride
water
- 9. Multiple Choice
The following list the electronic structures of four atoms:
W : 2, 1
X : 2, 7
Y : 2, 8, 4
Z : 2, 8, 8
Which two atoms combine to form an ionic compound?
W and X
W and Y
X and Y
X and Z
- 10. Multiple Choice
The following shows the electron structures of four elements.
W = 2, 6
X = 2, 8
Y = 2, 8, 1
Z = 2, 8, 7
Which pair of atoms will form a covalent substance?
two atoms of W
two atoms of X
an atom of W and two atoms of Y
an atom of Y and an atom of Z
- 11. Multiple ChoiceWhat do atoms that form positive ions tend to do?Tend to lose electronsTend to lose protonsTend to gain electronsTend to gain protons
- 12. Multiple ChoiceIn what form can an ionic compound conduct electricity?when dissolved in wateras a solidas a crystalwhen warmed slightly
- 13. Multiple ChoiceWhich of the following is a characteristic property of ionic compounds?They form hard, brittle crystals with characteristic shapesThey have low melting pointsThey have low boiling pointsThey contain no charged particles
- 14. Multiple ChoiceThe bonds in Na2O are best described asa. covalent, because valence electrons are shared.covalent, because valence electrons are transferredionic, because valance electrons are shared.ionic, because valance electrons are transferred.
- 15. Multiple ChoiceAtoms gain or lose electrons to become stable by satisfying this rule.Lewis Structure rulePeriodic Lawoctet ruleIonic Law
- Answer choicesTagsAnswer choicesTags