Chemistry 5070/21 — October/November 2012

Cambridge O-Level · Theory · worked solutions for every part, with the mark scheme

questions

marks

minutes

Topics Stoichiometry · Atoms, Elements and Compounds · Organic Chemistry · Metals · Chemistry of the Environment · Chemical Reactions · +5 more

Q18MAtoms, Elements and CompoundsThe Periodic TableOrganic ChemistryFree sample

(a)

Define the term element.

______

(b)

Choose from the following elements to answer the questions below.

aluminium
argon
bromine
gallium
helium
hydrogen
magnesium
nitrogen
oxygen
sodium

Each element can be used once, more than once or not at all.

Which element

(i)

is in Group III and Period 4 of the Periodic Table,

______

(ii)

has atoms with 8 electrons in their outer shell,

______

(iii)

is a liquid at room temperature,

______

(iv)

reduces unsaturated vegetable oils to form a solid product,

______

(v)

forms an ionic chloride with the formula $\text{XCl}_2$ ,

______

(vi)

is used in light bulbs?

______

(c)

Draw the electronic structure of an aluminium atom.

The rest of this paper

9 more questions

Q2Metals6M
Q3Organic Chemistry7M
Q4Chemistry of the Environment7M
Q5Electrochemistry · Chemistry of the Environment6M
Q6Chemical Reactions · Stoichiometry11M
Q7Atoms, Elements and Compounds · Metals · Stoichiometry · Acids, Bases and Salts · Experimental Techniques and Chemical Analysis10M
Q8Organic Chemistry · Stoichiometry10M
Q9Stoichiometry · Atoms, Elements and Compounds10M
Q10Metals · Experimental Techniques and Chemical Analysis · Chemical Reactions · States of Matter10M

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